Wintry Weather Across the Northern Tier of the U.S.; Fire Weather Concerns in California

Wintry weather is expected from the Northern Plains to Upper Great Lakes with periods of snow and freezing rain. Another system will bring more snow to the Northern Rockies and Northern Plains Wednesday night into Thursday. Meanwhile, fire weather and air quality concerns persist for portions of the Western U.S., including California. Temperatures will run above normal over much of the East. Read More >

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045ft.

NA

-2°C

29°F

Humidity 90%
Wind Speed NA NA MPH
Barometer NA
Dewpoint -3°C (26°F)
Visibility NA
Last update 20 Oct 11:00 PM MDT
Extended Forecast for

7 Miles SW Windham MT

Winter Weather Advisory October 21, 12:00pm until October 22, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: A slight chance of snow before 2am, then a slight chance of snow after 5am.  Partly cloudy, with a low around -4. South southwest wind 13 to 16 km/h.  Chance of precipitation is 20%.

    Slight Chance
    Snow

    Low: -4 °C

  • Wednesday

    Wednesday: Snow, mainly after noon.  High near 2. West southwest wind 14 to 21 km/h becoming north northwest in the afternoon. Winds could gust as high as 37 km/h.  Chance of precipitation is 90%. New snow accumulation of around a centimeter possible.

    Mostly Sunny
    then Snow

    High: 2 °C

  • Wednesday
    Night

    Wednesday Night: Snow.  Patchy blowing snow after midnight. Low around -11. Wind chill values as low as -20. North northwest wind 18 to 24 km/h, with gusts as high as 34 km/h.  Chance of precipitation is 100%. New snow accumulation of 10 to 16 centimeters possible.

    Snow and
    Patchy
    Blowing Snow

    Low: -11 °C

  • Thursday

    Thursday: A 40 percent chance of snow before noon.  Mostly cloudy, with a high near -8. Wind chill values as low as -20. North northwest wind 21 to 23 km/h, with gusts as high as 29 km/h.  New snow accumulation of 1 to 2 centimeters possible.

    Chance Snow
    then Mostly
    Cloudy

    High: -8 °C

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around -16. North northeast wind 11 to 13 km/h becoming south southwest after midnight.

    Mostly Cloudy

    Low: -16 °C

  • Friday

    Friday: A 30 percent chance of snow after noon.  Mostly cloudy, with a high near -8. South southwest wind 13 to 21 km/h becoming east in the afternoon.  New snow accumulation of less than a half centimeter possible.

    Partly Sunny
    then Chance
    Snow

    High: -8 °C

  • Friday
    Night

    Friday Night: Snow.  Low around -15. East northeast wind 13 to 16 km/h.  Chance of precipitation is 90%. New snow accumulation of 10 to 16 centimeters possible.

    Snow

    Low: -15 °C

  • Saturday

    Saturday: Snow.  Patchy blowing snow after noon. Cloudy, with a high near -12. North northeast wind 16 to 23 km/h, with gusts as high as 29 km/h.

    Snow and
    Patchy
    Blowing Snow

    High: -12 °C

  • Saturday
    Night

    Saturday Night: A chance of snow.  Mostly cloudy, with a low around -18.

    Chance Snow

    Low: -18 °C

Detailed Forecast

Tonight
A slight chance of snow before 2am, then a slight chance of snow after 5am. Partly cloudy, with a low around -4. South southwest wind 13 to 16 km/h. Chance of precipitation is 20%.
Wednesday
Snow, mainly after noon. High near 2. West southwest wind 14 to 21 km/h becoming north northwest in the afternoon. Winds could gust as high as 37 km/h. Chance of precipitation is 90%. New snow accumulation of around a centimeter possible.
Wednesday Night
Snow. Patchy blowing snow after midnight. Low around -11. Wind chill values as low as -20. North northwest wind 18 to 24 km/h, with gusts as high as 34 km/h. Chance of precipitation is 100%. New snow accumulation of 10 to 16 centimeters possible.
Thursday
A 40 percent chance of snow before noon. Mostly cloudy, with a high near -8. Wind chill values as low as -20. North northwest wind 21 to 23 km/h, with gusts as high as 29 km/h. New snow accumulation of 1 to 2 centimeters possible.
Thursday Night
Mostly cloudy, with a low around -16. North northeast wind 11 to 13 km/h becoming south southwest after midnight.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near -8. South southwest wind 13 to 21 km/h becoming east in the afternoon. New snow accumulation of less than a half centimeter possible.
Friday Night
Snow. Low around -15. East northeast wind 13 to 16 km/h. Chance of precipitation is 90%. New snow accumulation of 10 to 16 centimeters possible.
Saturday
Snow. Patchy blowing snow after noon. Cloudy, with a high near -12. North northeast wind 16 to 23 km/h, with gusts as high as 29 km/h.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -18.
Sunday
Mostly sunny, with a high near -12.
Sunday Night
Mostly clear, with a low around -19.
Monday
Mostly sunny, with a high near -3.
Monday Night
Mostly cloudy, with a low around -9.
Tuesday
Partly sunny, with a high near 2.
Click Map For Forecast
Point Forecast:
7 Miles SW Windham MT
 47°N 110.26°W (Elev. 1638 m)
8:35 pm MDT Oct 20, 2020
11pm MDT Oct 20, 2020-6pm MDT Oct 27, 2020
 
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Additional Resources

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