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Northeast
Northeast
New York City carries the mid-week heat and humidity into Thursday under a mostly cloudy sky, with temperatures pushing into the mid-80s and storm chances elevated through the afternoon and evening as a stationary frontal boundary lingers across the region. A Severe Thunderstorm Watch has been extended across portions of the Tri-State area as the front continues to focus rounds of heavy convection along the coast. The NWS New York forecast office notes that the combination of already-saturated soils and additional rainfall increases the flash flood risk through the overnight period.
The WPC issued a Slight Risk of excessive rainfall extending from the Plains into the Ohio and Tennessee Valleys on Thursday, with AccuWeather noting that flash flooding could become life-threatening in some communities across the Appalachians and Ohio Valley as rainfall totals of 4–8 inches are forecast from north-central Indiana through much of West Virginia. Philadelphia sits in the upper 80s under mostly cloudy skies with a lingering shower chance through the day. Boston holds in the mid-70s as the region continues its more comfortable stretch ahead of the next system.
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NYC — 84°F, mostly cloudy, storm and flood threat
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Newark — 86°F, humid, flash flood risk
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Philadelphia — 89°F, mostly cloudy, shower chance
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Boston — 76°F, comfortable, partly cloudy
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Hartford — 82°F, partly cloudy
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Providence — 80°F, partly cloudy
Mid-Atlantic & East Coast
Washington holds in the low 90s Thursday as dangerous heat continues across the Southeast and south-central U.S. under a strengthening upper-level ridge, with the NWS WPC noting the broad and persistent upper ridge across the southern tier will continue to drive hazardous heat across the region into next week. Heat indices are running well above 100°F through the afternoon hours, with high humidity locked in across the Chesapeake corridor. A slow-moving frontal boundary remains the focus for additional rounds of showers and thunderstorms capable of isolated flash flooding.
Baltimore and Richmond track warm and muggy in the upper 80s to near 90°F, with the NWS Baltimore/Washington office flagging the elevated flood potential as yet another round of organized convection pushes east. Wilmington and portions of Delaware remain under flood advisories through the day. The NWS Philadelphia/Mt. Holly office notes the stationary front will continue to be the focus for daily showers and thunderstorms capable of widely scattered flash flooding through the end of the week.
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Washington — 91°F, hot and humid, storm risk
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Baltimore — 90°F, muggy, flood threat
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Philadelphia — 89°F, shower and storm chance
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Richmond — 89°F, warm and muggy
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Virginia Beach — 86°F, sea breeze
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Wilmington DE — 88°F, flood advisory
Florida
Miami holds near 92°F under a heat advisory Thursday as the NWS Miami office confirms the advisory is again in effect for all of South Florida. Heat index values push into the dangerous range through the afternoon as the persistent Atlantic high continues to dominate the peninsula with no meaningful frontal relief on the horizon into next week. Orlando and Tampa sit in the low 90s under thick Gulf humidity, with afternoon sea-breeze storms continuing to develop inland.
The Florida Panhandle is tracking a markedly quieter day compared to last week, with conditions largely back to normal across the Gulf Coast after the previous tropical weather system moved west into the Gulf in July. The NHC reports no active tropical systems threatening Florida at this time, though the agency continues to monitor Potential Tropical Cyclone One-C churning in the Pacific — a system that has drawn attention for possible impacts to Hawaii later this weekend.
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Miami — 92°F, heat advisory in effect
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Fort Lauderdale — 91°F, hot and humid
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West Palm Beach — 91°F, slight storm chance
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Orlando — 92°F, partly cloudy
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Tampa — 90°F, sea breeze
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Naples — 91°F, humid
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Pensacola — 87°F, quiet, near normal
Southeast
Dangerous heat has settled across the Southeast on Thursday as an upper-level ridge strengthens overhead, with the NWS WPC confirming in its Short Range Forecast Discussion that a heatwave has locked in across the Central and Southern Plains and Southeast. Forecast highs in the upper 90s combined with high humidity are producing heat indices in the 105–115°F range across the region, with many areas on track for their hottest temperatures of the year. The WPC explicitly flagged potential for record-tying or record-breaking temperatures through the period.
Atlanta climbs toward 94°F under partly cloudy skies as scattered afternoon convection continues to fire along the frontal boundary drifting south and east. New Orleans bakes in the low-to-mid 90s, while Baton Rouge reaches 96°F as Gulf humidity and the ridge combine to drive heat indices into the dangerous zone. Charlotte and Raleigh sit in the upper 80s under a warm and muggy pattern, consistent with NOAA's above-normal heat outlook for the Carolinas corridor throughout August.
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New Orleans — 93°F, dangerous heat, high humidity
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Baton Rouge — 96°F, heat dome in place
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Mobile — 90°F, partly cloudy
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Atlanta — 94°F, heat building
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Charlotte — 88°F, warm and muggy
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Raleigh — 87°F, hot
Midwest
A stationary front continues to be the focus for daily rounds of showers and thunderstorms across the Midwest on Thursday, with the NWS WPC warning that the threat of heavy rainfall and flash flooding will remain in the forecast throughout much of the Midwest and Ohio Valley for the next couple of days. AccuWeather notes that severe thunderstorms will again become active from far eastern Nebraska to portions of the Ohio Valley Thursday, with flash flooding and damaging wind gusts as the primary threats as repeated rounds of heavy convection roll through the region.
Chicago sits near 78°F as additional storm rounds push through — the NWS Chicago office notes that flash flooding concerns remain elevated atop already saturated soils across the region. Minneapolis is dealing with clearing conditions following the overnight severe weather, while Des Moines and Omaha track in the mid-to-upper 80s, warm and humid. Elevated wildfire smoke from Pacific Northwest fires remains a factor across the Dakotas and Upper Plains, though much of the surface-level smoke is staying concentrated in eastern Washington and Idaho.
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Chicago — 78°F, storm and flood threat
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Minneapolis — 80°F, storm threat clearing
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Des Moines — 88°F, warm
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Omaha — 88°F, humid, Severe Thunderstorm Watch early morning
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Fargo — 82°F, elevated smoke
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Sioux Falls — 83°F, storm threat diminishing
Texas & Oklahoma
Dallas and Fort Worth hold near 99–102°F Thursday under hot, dry, and breezy conditions as the NWS Fort Worth office confirms dangerous heat continues with heat index values between 100–109°F through the day. The office notes that breezy south-southwesterly winds around 10–20 mph with gusts near 20–25 mph will combine with the heat and low humidity to maintain an elevated threat for grass fires across the region, particularly along and west of the I-35 corridor. The NWS Fort Worth office is explicitly flagging increased wildfire activity through the weekend as these conditions persist.
Austin and San Antonio sit in the low 100s under dry conditions, while Houston reaches near 97°F with Gulf moisture driving heat index values well above 105°F. Oklahoma City and Tulsa push toward the upper 90s as the heat dome tightens its grip on the southern Plains. A Heat Advisory covering portions of east and northeast Texas and southeast Oklahoma remains in effect through Friday evening, with heat index values forecast between 105–109°F according to the NWS.
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Dallas — 100°F, heat advisory, fire danger elevated
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Fort Worth — 101°F, hot, heat index 107°F
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Austin — 102°F, dry and breezy
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San Antonio — 100°F, humid
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Houston — 97°F, muggy, dangerous heat index
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Oklahoma City — 98°F, heat dome grip
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Tulsa — 97°F, hot
Mountain West
Denver sits near 77°F Thursday as the WPC notes that outside of the Desert Southwest, most of the West is experiencing mild, below-average temperatures generally in the 70s and 80s. The broad and persistent upper ridge across the southern tier remains well established into next week while a relatively active northern-stream flow drives rounds of showers and thunderstorms across the northern Rockies and Plains. Cheyenne and Casper hold near or above 100°F, extending a stretch of extreme heat that has already produced record readings across the region.
Billings and Rapid City track in the upper 90s as the ridge of high pressure maintains its hold from Arizona northward into Montana. Air quality across Idaho, Montana, and Wyoming continues to deteriorate from Pacific Northwest wildfire smoke, with AccuWeather senior meteorologist Brett Anderson noting that strong late-night and morning temperature inversions are trapping wildfire smoke close to the ground, leading to widespread poor air quality and greatly reduced visibility across portions of the region.
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Denver — 77°F, mostly sunny, mild
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Colorado Springs — 95°F, dry
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Cheyenne — 100°F, critical fire weather
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Casper — 101°F, extreme heat, smoke impacts
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Billings — 97°F, smoke worsening, inversion
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Rapid City — 96°F, hot
Desert Southwest
Las Vegas holds near 108–110°F Thursday as the extreme heat that has baked the Southwest for weeks continues, with overnight lows that fall only into the low 90s offering virtually no recovery window before another brutal afternoon unfolds. Phoenix sits at 108–111°F under a relentlessly clear sky as the monsoon season brings only limited relief to the immediate metro area. AccuWeather and The Weather Channel confirm that widespread highs in the 90s to low 100s persist across multiple states from California and Arizona through New Mexico, with fire danger remaining elevated across the region.
Clark County cooling stations remain open. The NWS continues to warn that heat illness can progress rapidly without intervention and urges residents to stay indoors during peak afternoon hours and check on vulnerable neighbors. Yuma, Lake Havasu, and Palm Springs continue to track among the hottest readings in the nation, with heat index values and direct sun making conditions dangerous for anyone without reliable air conditioning.
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Las Vegas — 109°F, dangerous heat
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Phoenix — 110°F, extreme
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Yuma — 112°F, very hot
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Tucson — 104°F, dry
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Palm Springs — 111°F, extreme heat
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Lake Havasu — 113°F, severe heat
California
The Central Valley remains locked under heat advisory conditions Thursday with Fresno and Bakersfield sitting in the 104–106°F range and Redding approaching 107°F as the ridge of high pressure keeps inland temperatures well above normal. Sacramento holds near 103°F. The 2026 California wildfire season has been relatively quiet compared to neighboring Pacific Northwest states, with California burning only about 200,000 acres through July — roughly 68 percent of the historical normal pace — though active fires continue to burn in the Sierra Nevada, Merced County, and Tuolumne County.
San Francisco remains under its familiar marine layer at a cool 62–63°F, a difference of more than 40 degrees from the interior across less than 60 miles. Wildfire smoke from dozens of active blazes in Oregon and Washington continues to drift south, with AccuWeather reporting that westerly winds are currently pushing the worst of surface-level smoke away from the I-5 corridor and keeping hazardous conditions concentrated east of the Cascades for now.
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Sacramento — 103°F, hot
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Fresno — 105°F, dry
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Bakersfield — 105°F, hot
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Redding — 107°F, extreme heat
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San Francisco — 63°F, marine layer
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Los Angeles (inland) — 92°F, hot
Pacific Northwest
Portland tracks near 87°F Thursday — still hot and dry with no meaningful rain in the forecast — as fire weather conditions remain dangerous across Oregon and eastern Washington. Seattle holds in the low 80s, where westerly winds are continuing to push the worst of the surface-level smoke away from the I-5 corridor after a wind shift improved conditions significantly west of the Cascades. The Washington Smoke Blog, a partnership of state, county, and federal agencies, confirms that Unhealthy to Very Unhealthy air quality continues to inundate many parts of eastern Washington, with additional smoke impacts expected to spread further through the week.
East of the Cascades, the situation remains severe. Nearly 2.2 million acres are actively burning in Washington and Oregon as of mid-August, contributing to a national total of over 6.4 million acres burned this year. The Old Trails Fire complex and associated blazes that devastated Spokane County remain active, with Governor Bob Ferguson's public health emergency declaration still in force. More than 700 buildings were destroyed in Spokane County by the initial outbreak. Boise sits near 91°F with Red Flag Warnings and ongoing hazardous smoke impacts across the surrounding region.
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Portland — 87°F, dry, fire weather
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Seattle — 82°F, smoke improving west of Cascades
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Spokane — 84°F, hazardous smoke, fires active
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Boise — 91°F, smoke / Red Flag Warning
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Eugene — 85°F, warm
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Bend — 88°F, dry
Sources: NOAA, NWS, Weather Prediction Center, Storm Prediction Center, National Interagency Fire Center, National Hurricane Center, AccuWeather, Fox Weather, The Weather Channel, Washington Smoke Blog, NASA GEOS, Local Forecast Offices