Hot Temperatures in the Northwest U.S.; Tropical Rainfall Potential in the Southwest U.S.

Hot to extremely hot temperatures are in place again Thursday across the interior northwest U.S. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. through Saturday which may bring areas of flooding. Read More >

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Last Map Update: Wed, Sep 3, 2025 at 7:18:27 pm PDT

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

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Extreme Heat Warning

Red Flag Warning

Heat Advisory

Air Quality Alert

Seasonably Extreme Heat Arrives!

Heat Advisories Extended Through Thursday

Red Flag Warning through Wednesday

Extreme Heat Warnings are in effect Tuesday through Thursday with temperatures up to the low 100s with high-end Major HeatRisk forecasted. For more info on HeatRisk: https://www.wpc.ncep.noaa.gov/heatrisk/