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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Hulett Municipal Airport (KW43)

Lat: 44.66°NLon: 104.57°WElev: 4263ft.

Overcast

41°F

5°C

Humidity 57%
Wind Speed SW 13 mph
Barometer 29.67 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 9 Dec 2:35 am MST
Extended Forecast for

Alva WY

  • Overnight

    Overnight: A chance of rain and snow after 5am. Mostly cloudy, with a low around 36. Southwest wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain likely before 4pm, then a slight chance of rain and snow. Mostly cloudy, with a temperature rising to near 49 by noon, then falling to around 34 during the remainder of the day. Breezy, with a southwest wind 20 to 26 mph becoming northwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F⇓

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Wind chill values as low as 17. Blustery, with a northwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.

    Low: 25 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Snow before 3pm, then rain. High near 44. Wind chill values as low as 19. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain likely before 4am, then rain likely, possibly mixed with snow. Cloudy, with a low around 34. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before 3pm, then rain. Temperature rising to near 46 by 11am, then falling to around 36 during the remainder of the day. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 46 °F⇓

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Thursday Night

    Thursday Night: Snow. Low around 8. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 8 °F

    Snow

  • Friday

    Friday: Snow likely. Cloudy, with a high near 19. Northwest wind around 6 mph becoming light and variable.

    High: 19 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow. Cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow

Detailed Forecast

Overnight
A chance of rain and snow after 5am. Mostly cloudy, with a low around 36. Southwest wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Rain likely before 4pm, then a slight chance of rain and snow. Mostly cloudy, with a temperature rising to near 49 by noon, then falling to around 34 during the remainder of the day. Breezy, with a southwest wind 20 to 26 mph becoming northwest in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Partly cloudy, with a low around 25. Wind chill values as low as 17. Blustery, with a northwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.
Wednesday
Snow before 3pm, then rain. High near 44. Wind chill values as low as 19. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain likely before 4am, then rain likely, possibly mixed with snow. Cloudy, with a low around 34. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before 3pm, then rain. Temperature rising to near 46 by 11am, then falling to around 36 during the remainder of the day. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Low around 8. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Friday
Snow likely. Cloudy, with a high near 19. Northwest wind around 6 mph becoming light and variable.
Friday Night
A chance of snow. Cloudy, with a low around 8.
Saturday
A chance of snow before 11am. Mostly cloudy, with a high near 23.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alva WY
 44.69°N 104.44°W (Elev. 4180 ft)
Last Update:
2:31 am MST Dec 9, 2025
Forecast Valid:
2am MST Dec 9, 2025-6pm MST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation