Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. 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.

30°F

-1°C

Humidity	100%
Wind Speed	ESE 0 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	31 Mar 09:15 PM MDT

More Information:

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

Extended Forecast for

5 Miles SSW Mammoth Hot Springs WY

Tonight
Low: 31 °F
Rain/Snow
Likely
Wednesday
High: 43 °F
Scattered
Snow Showers
then
Rain/Snow
Likely
Wednesday Night
Low: 31 °F
Rain/Snow
then Snow
Showers
Thursday
High: 35 °F
Snow Showers
and Breezy
Thursday Night
Low: 21 °F
Snow Showers
and Breezy
Friday
High: 34 °F
Snow Showers
Likely then
Chance Snow
Showers
Friday Night
Low: 20 °F
Partly Cloudy
Saturday
High: 44 °F
Sunny
Saturday Night
Low: 23 °F
Clear

Detailed Forecast

Tonight

Snow showers likely, possibly mixed with rain, becoming all snow after 2am. Snow level 7900 feet lowering to 7400 feet after midnight . Mostly cloudy, with a low around 31. South wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Scattered snow showers before noon, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Partly sunny, with a high near 43. South southwest wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 31. South southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Thursday

Snow showers. Some thunder is also possible. High near 35. Breezy, with a southwest wind 14 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow showers. Low around 21. Breezy, with a west southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow showers likely, mainly before noon. Mostly cloudy, with a high near 34. Northwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

Friday Night

Partly cloudy, with a low around 20. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

Saturday

Sunny, with a high near 44.

Saturday Night

Clear, with a low around 23.

Sunday

Sunny, with a high near 49.

Sunday Night

Partly cloudy, with a low around 28.

Monday

Mostly sunny, with a high near 52.