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

Afton WY (KAFO)

Lat: 42.71133°NLon: 110.94217°WElev: 6201.0ft.

Overcast

39°F

4°C

Humidity 69%
Wind Speed S 5 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 09 Dec 03:55 AM MST
Extended Forecast for

5 Miles NNE Border ID

Winter Weather Advisory December 9, 05:00am until December 10, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: A 10 percent chance of snow after 5am.  Mostly cloudy, with a steady temperature around 31. West wind around 13 mph.

    Low: 31 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Snow likely, mainly after 1pm.  Cloudy, with a high near 33. West southwest wind 11 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 4am.  Cloudy, with a low around 31. West wind 11 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Snow Likely

  • Wednesday

    Wednesday: A chance of snow, possibly mixing with rain after 11am, then gradually ending.  Mostly cloudy, with a high near 37. West wind 9 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West wind 7 to 11 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36. West wind 6 to 8 mph.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. West northwest wind 6 to 9 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of snow after 5am. Mostly cloudy, with a steady temperature around 31. West wind around 13 mph.
Tuesday
Snow likely, mainly after 1pm. Cloudy, with a high near 33. West southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely, mainly after 4am. Cloudy, with a low around 31. West wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
A chance of snow, possibly mixing with rain after 11am, then gradually ending. Mostly cloudy, with a high near 37. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Partly cloudy, with a low around 26. West wind 7 to 11 mph.
Thursday
Mostly sunny, with a high near 36. West wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 26. West northwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Border ID
 42.26°N 111°W (Elev. 8799 ft)
2:31 am MST Dec 9, 2025
4am MST Dec 9, 2025-6pm MST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database