
Prolonged Extreme Cold; Eastern U.S. Winter Storm
Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >
Current conditions at
Riverton Regional Airport (KRIW)
Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.
Clear
25°F
-4°C
| Humidity | 58% |
| Wind Speed | NW 14 MPH |
| Barometer | 30.22 in (1023.37 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 13°F (-11°C) |
| Last update | 29 Jan 07:20 AM MST |
Extended Forecast for
3 Miles WNW Arapahoe WY
Today

High: 46 °F
Sunny
Tonight

Low: 18 °F
Mostly Clear
Friday

High: 45 °F
Sunny
Friday Night

Low: 22 °F
Mostly Cloudy
Saturday

High: 54 °F
Mostly Sunny
Saturday Night

Low: 21 °F
Partly Cloudy
Sunday

High: 51 °F
Partly Sunny
Sunday Night

Low: 24 °F
Mostly Cloudy
Monday

High: 52 °F
Partly Sunny
Detailed Forecast
Today
Sunny, with a high near 46. Northwest wind 9 to 14 mph becoming light north northwest in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 18. West wind 5 to 9 mph.
Friday
Sunny, with a high near 45. Light and variable wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 22. Southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 54. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 21. Southwest wind 3 to 7 mph.
Sunday
Partly sunny, with a high near 51. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Sunny, with a high near 45.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Arapahoe WY
42.99°N 108.56°W (Elev. 5197 ft)
42.99°N 108.56°W (Elev. 5197 ft)
5:47 am MST Jan 29, 2026
7am MST Jan 29, 2026-6pm MST Feb 4, 2026


