Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

27°F

-3°C

Humidity	49%
Wind Speed	SSE 7 MPH
Barometer	NA
Dewpoint	10°F (-12°C)
Visibility	NA
Wind Chill	19°F (-7°C)
Last update	30 Dec 11:15 AM MST

More Information:

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

Extended Forecast for

Mammoth WY

This Afternoon
High: 37 °F
Sunny
Tonight
Low: 21 °F
Mostly Clear
Wednesday
High: 43 °F
Sunny
Wednesday Night
Low: 26 °F
Mostly Cloudy
New Year's Day
High: 41 °F
Slight Chance
Snow Showers
then Slight
Chance
Rain/Snow
Thursday Night
Low: 32 °F
Slight Chance
Rain/Snow
then Mostly
Cloudy
Friday
High: 42 °F
Slight Chance
Showers
Friday Night
Low: 37 °F
Mostly Cloudy
Saturday
High: 44 °F
Chance
Rain/Snow

Detailed Forecast

This Afternoon

Sunny, with a high near 37. South southeast wind around 7 mph.

Tonight

Mostly clear, with a low around 21. South southeast wind around 9 mph.

Wednesday

Sunny, with a high near 43. Southeast wind 8 to 10 mph.

Wednesday Night

Mostly cloudy, with a low around 26. South wind around 8 mph.

New Year's Day

A slight chance of snow showers after 11am, mixing with rain after 2pm. Mostly cloudy, with a high near 41. South wind around 7 mph. Chance of precipitation is 20%.

Thursday Night

A slight chance of rain and snow showers before 11pm. Snow level 6400 feet. Mostly cloudy, with a low around 32. South wind around 7 mph. Chance of precipitation is 20%.

Friday

A 20 percent chance of showers after 11am. Snow level 6400 feet rising to 7100 feet in the afternoon. Mostly cloudy, with a high near 42. South southwest wind 6 to 9 mph, with gusts as high as 21 mph.

Friday Night

Mostly cloudy, with a low around 37.

Saturday

A chance of rain showers before 11am, then a chance of rain and snow showers. Snow level 7100 feet lowering to 6600 feet in the afternoon . Mostly cloudy, with a high near 44. Chance of precipitation is 30%.

Saturday Night

A slight chance of rain and snow showers before 11pm. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

Sunday

A slight chance of snow showers. Partly sunny, with a high near 39.

Sunday Night

Mostly cloudy, with a low around 26.

Monday

A slight chance of snow showers. Partly sunny, with a high near 38.