National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns and the Tropics

Wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as Tropical Depression Two has formed, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

Current conditions at

SISTERS (K6K5)

Lat: 44.30445°NLon: 121.53909°WElev: 3168.0ft.

NA

72°F

22°C

Humidity 37%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 19 Jul 09:55 AM PDT
Extended Forecast for

Sisters OR

  • Today

    Today: Widespread smoke, mainly after 2pm. Mostly sunny, with a high near 92. Calm wind becoming north around 6 mph in the afternoon.

    High: 92 °F

    Smoke

  • Tonight

    Tonight: Areas of smoke. Mostly cloudy, with a low around 58. North wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Areas Smoke

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59. North wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. Light north wind.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 92.

    High: 92 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Widespread smoke, mainly after 2pm. Mostly sunny, with a high near 92. Calm wind becoming north around 6 mph in the afternoon.
Tonight
Areas of smoke. Mostly cloudy, with a low around 58. North wind around 6 mph becoming calm in the evening.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 59. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 92. Light north wind.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
A 50 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 92.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 57.
Thursday
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sisters OR
 44.29°N 121.55°W (Elev. 3199 ft)
Last Update:
4:01 am PDT Jul 19, 2026
Forecast Valid:
10am PDT Jul 19, 2026-6pm PDT Jul 25, 2026
 
Forecast Discussion
 
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Additional Resources

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