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

Current conditions at

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Overcast

37°F

3°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.75 in (1007.45 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Last update	25 Dec 11:30 PM MST

More Information:

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

Extended Forecast for

2 Miles ENE Hamilton MT

Winter Weather Advisory December 27, 02:00am until December 27, 05:00pm

Wind Advisory December 26, 05:00am until December 26, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Wind Advisory

Tonight
Low: 31 °F
Rain/Snow
Likely and
Patchy Fog
Friday
High: 41 °F
Rain/Snow
Likely and
Patchy Fog
Friday Night
Low: 24 °F
Snow
Saturday
High: 29 °F
Snow then
Chance Snow
Saturday Night
Low: 9 °F
Partly Cloudy
Sunday
High: 27 °F
Mostly Sunny
Sunday Night
Low: 13 °F
Mostly Clear
Monday
High: 35 °F
Mostly Sunny
Monday Night
Low: 22 °F
Mostly Cloudy

Detailed Forecast

Tonight

A chance of rain before 5am, then rain and snow likely. Patchy fog between 1am and 5am. Otherwise, mostly cloudy, with a low around 31. South southeast wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday

Rain and snow likely before 4pm, then a chance of snow. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 41. Breezy, with a south southwest wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday Night

Snow, mainly after 11pm. Low around 24. Southwest wind around 18 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Saturday

Snow, mainly before 11am. High near 29. West southwest wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 9. West wind 5 to 7 mph becoming light and variable in the evening.

Sunday

Mostly sunny, with a high near 27.

Sunday Night

Mostly clear, with a low around 13.

Monday

Mostly sunny, with a high near 35.

Monday Night

Mostly cloudy, with a low around 22.

Tuesday

Mostly cloudy, with a high near 41.