Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. 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.

18°F

-8°C

Humidity	91%
Wind Speed	WNW 5 MPH
Barometer	NA
Dewpoint	15°F (-9°C)
Visibility	NA
Wind Chill	11°F (-12°C)
Last update	14 Mar 10:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Tonight
Low: 14 °F
Partly Cloudy
Sunday
High: 32 °F
Mostly Sunny
Sunday Night
Low: 21 °F
Partly Cloudy
then Chance
Snow Showers
Monday
High: 45 °F
Chance Snow
Showers then
Rain/Snow
Likely
Monday Night
Low: 37 °F
Chance
Showers then
Slight Chance
Showers
Tuesday
High: 56 °F
Partly Sunny
Tuesday Night
Low: 40 °F
Mostly Cloudy
Wednesday
High: 63 °F
Mostly Sunny
Wednesday Night
Low: 39 °F
Mostly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 14. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

Sunday

Mostly sunny, with a high near 32. North northwest wind 6 to 10 mph, with gusts as high as 23 mph.

Sunday Night

A 30 percent chance of snow showers, mainly after 4am. Increasing clouds, with a low around 21. Northwest wind 6 to 9 mph becoming south in the evening. Winds could gust as high as 22 mph. Little or no snow accumulation expected.

Monday

Snow showers likely before 3pm, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a high near 45. Southwest wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Monday Night

A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 37. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.

Tuesday

Partly sunny, with a high near 56. Southwest wind 9 to 11 mph, with gusts as high as 26 mph.

Tuesday Night

Mostly cloudy, with a low around 40. South southwest wind 8 to 10 mph, with gusts as high as 25 mph.

Wednesday

Mostly sunny, with a high near 63.

Wednesday Night

Mostly cloudy, with a low around 39.

Thursday

Mostly sunny, with a high near 65.

Thursday Night

Partly cloudy, with a low around 40.