Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

43°F

6°C

Humidity	48%
Wind Speed	WSW 10 MPH
Barometer	29.88 in (1011.85 mb)
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	37°F (3°C)
Last update	25 Dec 10:20 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WNW Arapahoe WY

Tonight
Low: 33 °F
Mostly Clear
Friday
High: 51 °F
Scattered
Showers and
Windy
Friday Night
Low: 28 °F
Scattered
Rain/Snow and
Breezy then
Isolated Snow
Showers
Saturday
High: 44 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Saturday Night
Low: 12 °F
Chance Snow
Showers
Sunday
High: 29 °F
Sunny
Sunday Night
Low: 10 °F
Mostly Clear
Monday
High: 34 °F
Sunny
Monday Night
Low: 15 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 33. South wind 11 to 14 mph, with gusts as high as 20 mph.

Friday

Isolated showers before 3pm, then scattered showers after 4pm. Mostly sunny, with a high near 51. Windy, with a south southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.

Friday Night

Scattered rain and snow showers before 10pm, then a slight chance of snow showers. Mostly cloudy, with a low around 28. Breezy, with a west wind 11 to 18 mph becoming south in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Saturday

Mostly sunny, with a high near 44. Breezy, with a southwest wind 10 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.

Saturday Night

A 30 percent chance of snow showers. Mostly cloudy, with a low around 12. North wind 9 to 14 mph.

Sunday

Sunny, with a high near 29. West northwest wind 5 to 7 mph becoming east northeast in the afternoon.

Sunday Night

Mostly clear, with a low around 10. West southwest wind 3 to 5 mph.

Monday

Sunny, with a high near 34.

Monday Night

Mostly clear, with a low around 15.

Tuesday

Mostly sunny, with a high near 40.