Areas of Extreme Heat and Fire Weather in the West; Refreshingly Cooler Further East

Extreme heat will continue across the Pacific Northwest into midweek before finally waning. Hot temperatures, low relative humidity, gusty winds, and isolated dry thunderstorms will bring critical fire weather into Tuesday. A refreshingly cool air mass has settled into much of the eastern two-thirds of the Rockies through the week. Read More >

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Last Map Update: Mon, Aug 25, 2025 at 11:54:17 am PDT

Watches, Warnings & Advisories

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Extreme Heat Warning

Flash Flood Watch

Red Flag Warning

Heat Advisory

Small Craft Advisory

Flood Watch

Air Quality Alert

Hydrologic Outlook

Heat Risk

Daily Thunderstorms

Signs of Heat Illnesses

Hot Car Safety

Hot temperatures will continue through Monday, resulting in a major risk for heat related illnesses during this time as this level of heat affects anyone without cooling/hydration. Find places to cool off – pools, lakes, misters, sprinklers, air conditioned buildings, shaded areas – anywhere to mitigate the effects of the heat. Coastal areas will be cooler, as will the higher mountains above 6000 feet.

An unstable monsoonal air mass will be present across the region through Wednesday, resulting in daily chances for thunderstorms as well as possible storms overnight. The focus for activity across Siskiyou, Modoc, Klamath, Lake, Jackson, Josephine and eastern Douglas counties. Storms will be capable of producing gusty winds, hail and perhaps new fire starts. If you have outdoor plans during this time, be sure to include a plan for where to go if a storm develops nearby. Avoid exposed areas like mountain summits, lakes, or large fields if caught in a storm. Seek shelter in a substantial building or hard topped vehicle. Wait 30 minutes after the last rumble of thunder before resuming activities.