Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

42°F

6°C

Humidity	74%
Wind Speed	S 4 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	29 Jun 12:15 AM MDT

More Information:

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

Extended Forecast for

8 Miles W Mammoth Hot Springs WY

Overnight
Low: 31 °F
Snow Showers
and Breezy
Monday
High: 34 °F
Windy. Snow
Showers then
Rain/Snow
Monday Night
Low: 32 °F
Chance
Showers and
Windy then
Mostly Cloudy
and Breezy
Tuesday
High: 49 °F
Mostly Sunny
and Breezy
then Slight
Chance
T-storms
Tuesday Night
Low: 33 °F
Partly Cloudy
and Breezy
then Mostly
Clear
Wednesday
High: 51 °F
Breezy. Sunny
then Chance
T-storms
Wednesday Night
Low: 34 °F
Slight Chance
T-storms and
Breezy then
Partly Cloudy
Thursday
High: 54 °F
Mostly Sunny
and Breezy
Thursday Night
Low: 38 °F
Partly Cloudy
and Breezy
then Mostly
Cloudy

Detailed Forecast

Overnight

Snow showers, mainly after 3am. Steady temperature around 31. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

Monday

Snow showers before 4pm, then rain and snow showers likely. Some thunder is also possible. High near 34. Windy, with a southwest wind 25 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Monday Night

A 40 percent chance of showers and thunderstorms, mainly before 8pm. Snow level 10000 feet. Mostly cloudy, with a low around 32. Windy, with a west southwest wind 15 to 25 mph, with gusts as high as 36 mph.

Tuesday

A 20 percent chance of showers and thunderstorms after 2pm. Snow level 10000 feet rising to 11200 feet in the afternoon. Mostly sunny, with a high near 49. Breezy, with a southwest wind 11 to 16 mph, with gusts as high as 24 mph.

Tuesday Night

Partly cloudy, with a low around 33. Breezy, with a south wind 10 to 15 mph, with gusts as high as 25 mph.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 51. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 34. Breezy, with a west southwest wind 10 to 16 mph becoming south after midnight. Winds could gust as high as 28 mph.

Thursday

Mostly sunny, with a high near 54. Breezy.

Thursday Night

Partly cloudy, with a low around 38. Breezy.

Friday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 55. Breezy.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 37.

Independence Day

A slight chance of showers and thunderstorms. Sunny, with a high near 55.

Saturday Night

Mostly clear, with a low around 38.