Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

light snow,mist

28°F

-2°C

Humidity 100%
Wind Speed NNE 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 28°F (-2°C)
Visibility 1.25 mi
Last update 02 Dec 11:05 PM MST
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Tonight

    Tonight: A 50 percent chance of snow showers, mainly before 4am.  Patchy fog before 4am.  Otherwise, mostly cloudy, with a low around 18. West northwest wind around 6 mph becoming north northeast after midnight.  Total nighttime snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Northeast wind around 6 mph becoming south in the afternoon.

    High: 31 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 11. Wind chill values as low as zero. West southwest wind 5 to 7 mph.

    Low: 11 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 36. Wind chill values as low as zero. Southwest wind around 6 mph.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. West southwest wind around 7 mph.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 37. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly after 11pm.  Mostly cloudy, with a low around 20. West wind 7 to 9 mph.

    Low: 20 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers before 11am, then a slight chance of rain and snow showers.  Partly sunny, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of rain and snow showers before 11pm.  Partly cloudy, with a low around 19. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
A 50 percent chance of snow showers, mainly before 4am. Patchy fog before 4am. Otherwise, mostly cloudy, with a low around 18. West northwest wind around 6 mph becoming north northeast after midnight. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 31. Northeast wind around 6 mph becoming south in the afternoon.
Wednesday Night
Mostly clear, with a low around 11. Wind chill values as low as zero. West southwest wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 36. Wind chill values as low as zero. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 15. West southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 37. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 20. West wind 7 to 9 mph.
Saturday
A chance of snow showers before 11am, then a slight chance of rain and snow showers. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Saturday Night
A slight chance of rain and snow showers before 11pm. Partly cloudy, with a low around 19. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
A slight chance of rain and snow showers. Partly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
11:18 pm MST Dec 2, 2025
11pm MST Dec 2, 2025-6pm MST Dec 9, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database