Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

34°F

1°C

Humidity	51%
Wind Speed	SSE 8 MPH
Barometer	NA
Dewpoint	17°F (-8°C)
Visibility	NA
Wind Chill	27°F (-3°C)
Last update	01 Jan 11:15 AM MST

More Information:

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

Extended Forecast for

5 Miles WNW Mount Holmes WY

New Year's Day
High: 25 °F
Chance Snow
Showers
Tonight
Low: 23 °F
Snow Showers
Friday
High: 26 °F
Snow Showers
Likely then
Chance Snow
Showers
Friday Night
Low: 26 °F
Cloudy
Saturday
High: 30 °F
Mostly Cloudy
Saturday Night
Low: 25 °F
Chance Snow
Showers
Sunday
High: 28 °F
Snow Showers
Likely
Sunday Night
Low: 24 °F
Chance Snow
Showers
Monday
High: 26 °F
Snow Showers
Likely

Detailed Forecast

New Year's Day

A 50 percent chance of snow showers after 3pm. Mostly cloudy, with a high near 25. South southwest wind 7 to 11 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow showers. Low around 23. Southwest wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow showers likely, mainly before 11am. Mostly cloudy, with a high near 26. Southwest wind 7 to 11 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Friday Night

Cloudy, with a low around 26. Southwest wind around 10 mph, with gusts as high as 20 mph.

Saturday

Mostly cloudy, with a high near 30. South southwest wind 10 to 14 mph, with gusts as high as 26 mph.

Saturday Night

A 50 percent chance of snow showers. Cloudy, with a low around 25. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.

Sunday

Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 28. South southwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

Sunday Night

A 50 percent chance of snow showers. Cloudy, with a low around 24.

Monday

Snow showers likely. Mostly cloudy, with a high near 26. Chance of precipitation is 70%.

Monday Night

A 30 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 18.

Tuesday

A chance of snow showers. Mostly cloudy, with a high near 21.

Tuesday Night

A slight chance of snow showers. Mostly cloudy, with a low around 17.

Wednesday

A chance of snow showers. Mostly cloudy, with a high near 22.