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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

18°F

-8°C

Humidity 61%
Wind Speed N 5 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 28 Jan 08:35 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 41. South southwest wind around 5 mph becoming calm in the morning.

    High: 41 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tonight

    Tonight: A 20 percent chance of snow showers before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 15. Light and variable wind becoming west northwest 6 to 11 mph in the evening.

    Low: 15 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 43. Southwest wind around 6 mph becoming east in the afternoon.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 13. Southwest wind around 6 mph.

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 44. Calm wind becoming east around 5 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. South southwest wind around 6 mph.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Southwest wind around 6 mph becoming north northwest in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of snow showers, mainly after 4pm. Mostly cloudy, with a high near 41. South southwest wind around 5 mph becoming calm in the morning.
Tonight
A 20 percent chance of snow showers before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 15. Light and variable wind becoming west northwest 6 to 11 mph in the evening.
Thursday
Sunny, with a high near 43. Southwest wind around 6 mph becoming east in the afternoon.
Thursday Night
Mostly clear, with a low around 13. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 44. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 20. South southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 52. Southwest wind around 6 mph becoming north northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
8:34 am MST Jan 28, 2026
Forecast Valid:
8am MST Jan 28, 2026-6pm MST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation