Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

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Last Map Update: Sun, Aug 9, 2026 at 10:52:24 pm PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Extreme Heat Warning

Heat Advisory

Coastal Flood Advisory

Small Craft Advisory

Local Area Emergency

Air Quality Alert

Prolonged Heat

High Temperatures through Tuesday

Dangerous heat continues through Monday morning. Highs of 95–106°F and warm overnight lows will bring Major HeatRisk to the Basin and Range and Moderate-to-Major HeatRisk elsewhere. Extreme Heat Warning in effect for the Basin and Range with Heat Advisories in effect for the remainder of the area, except the Sierra.

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Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

NWS Forecast Office Reno, NV