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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

SISTERS (K6K5)

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

NA

59°F

15°C

Humidity 62%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 19 Sep 11:55 PM PDT
Extended Forecast for

Mt Jefferson OR

  • Overnight

    Overnight: Mostly clear, with a low around 45. Southwest wind around 9 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. West wind 9 to 11 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Snow showers likely after 5am. Snow level 11600 feet lowering to 9800 feet after midnight . Increasing clouds, with a low around 34. West wind 14 to 18 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Partly Cloudy
    then Snow
    Showers
    Likely

  • Sunday

    Sunday: Rain and snow showers likely before 11am, then rain showers likely between 11am and 2pm, then snow showers likely after 2pm. Snow level 10200 feet lowering to 9200 feet in the afternoon . Partly sunny, with a high near 40. Southwest wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 31. West wind 8 to 11 mph.

    Low: 31 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Southwest wind around 9 mph.
Saturday
Sunny, with a high near 55. West wind 9 to 11 mph.
Saturday Night
Snow showers likely after 5am. Snow level 11600 feet lowering to 9800 feet after midnight . Increasing clouds, with a low around 34. West wind 14 to 18 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Rain and snow showers likely before 11am, then rain showers likely between 11am and 2pm, then snow showers likely after 2pm. Snow level 10200 feet lowering to 9200 feet in the afternoon . Partly sunny, with a high near 40. Southwest wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 31. West wind 8 to 11 mph.
Monday
Sunny, with a high near 48.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
A slight chance of showers after 11am. Sunny, with a high near 54.
Wednesday Night
A slight chance of rain and snow showers. Snow level 10900 feet lowering to 9900 feet after midnight . Partly cloudy, with a low around 40.
Thursday
A slight chance of rain and snow showers. Mostly sunny, with a high near 44.
Thursday Night
A slight chance of snow showers. Partly cloudy, with a low around 37.
Friday
A chance of rain and snow showers. Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mt Jefferson OR
 44.67°N 121.81°W (Elev. 9183 ft)
Last Update:
11:20 pm PDT Sep 19, 2025
Forecast Valid:
12am PDT Sep 20, 2025-6pm PDT Sep 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation