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

Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

SISTERS (K6K5)

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

NA

30°F

-1°C

Humidity 86%
Wind Speed WSW 8 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 10 Mar 10:55 AM PDT
Extended Forecast for

Sisters OR

Winter Weather Advisory until March 11, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 11, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Today

    High: 39 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: Snow likely, mainly before 8pm. Mostly cloudy, with a low around 26. West wind around 6 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely

  • Wednesday

    Wednesday: A chance of snow before 8am, then rain and snow likely between 8am and 11am, then rain likely after 11am. Snow level rising to 5400 feet in the afternoon. Partly sunny, with a high near 48. Southeast wind 5 to 10 mph becoming west 12 to 17 mph in the morning. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 37. Southwest wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 49. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 11am. Partly sunny, with a high near 51. Chance of precipitation is 60%.

    High: 51 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain before 5am, then rain, possibly mixed with snow. Low around 33. Chance of precipitation is 90%.

    Low: 33 °F

    Rain then
    Rain/Snow

Detailed Forecast

Today
Snow showers likely, mainly between 2pm and 5pm, then snow likely after 5pm. Partly sunny, with a high near 39. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely, mainly before 8pm. Mostly cloudy, with a low around 26. West wind around 6 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of snow before 8am, then rain and snow likely between 8am and 11am, then rain likely after 11am. Snow level rising to 5400 feet in the afternoon. Partly sunny, with a high near 48. Southeast wind 5 to 10 mph becoming west 12 to 17 mph in the morning. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 37. Southwest wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely. Mostly cloudy, with a high near 49. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
Rain likely, mainly after 11am. Partly sunny, with a high near 51. Chance of precipitation is 60%.
Friday Night
Rain before 5am, then rain, possibly mixed with snow. Low around 33. Chance of precipitation is 90%.
Saturday
A chance of rain and snow, mainly before 11am. Snow level 5200 feet lowering to 3700 feet. Partly sunny, with a high near 49. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A slight chance of rain and snow. Snow level rising to 5900 feet in the afternoon. Mostly cloudy, with a high near 57.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Monday
A slight chance of rain. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sisters OR
 44.29°N 121.58°W (Elev. 3261 ft)
Last Update:
10:15 am PDT Mar 10, 2026
Forecast Valid:
11am PDT Mar 10, 2026-6pm PDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation