Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

65°F

18°C

Humidity	52%
Wind Speed	E 1 MPH
Barometer	NA
Dewpoint	47°F (8°C)
Visibility	NA
Last update	20 Jun 01:15 PM MDT

More Information:

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

Extended Forecast for

Norris WY

This Afternoon
High: 65 °F
Slight Chance
T-storms and
Breezy
Tonight
Low: 38 °F
Chance
Showers and
Breezy
Saturday
High: 57 °F
Mostly Sunny
then Chance
Showers and
Breezy
Saturday Night
Low: 32 °F
Chance
Rain/Snow
then
Rain/Snow
Sunday
High: 47 °F
Snow Showers
then
Rain/Snow
Sunday Night
Low: 25 °F
Chance
Rain/Snow
then Partly
Cloudy
Monday
High: 59 °F
Sunny
Monday Night
Low: 31 °F
Partly Cloudy
Tuesday
High: 64 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a steady temperature around 65. Breezy, with a south southwest wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

Tonight

A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 5 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

Saturday

A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Snow level 7900 feet rising to 8500 feet in the afternoon. Mostly sunny, with a high near 57. Breezy, with a southwest wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

Saturday Night

A chance of rain showers before 11pm, then rain and snow showers likely between 11pm and 5am, then snow showers after 5am. Snow level 8600 feet lowering to 7600 feet after midnight . Low around 32. Southwest wind 6 to 11 mph becoming light west southwest after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Rain and snow showers before 3pm, then rain showers between 3pm and 5pm, then rain and snow showers after 5pm. Some thunder is also possible. Snow level rising to 8200 feet in the afternoon. High near 47. Light west southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Sunday Night

A chance of rain and snow showers before midnight. Some thunder is also possible. Snow level 8300 feet lowering to 7700 feet after midnight . Partly cloudy, with a low around 25. West southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

Monday

Sunny, with a high near 59. Calm wind becoming west southwest 5 to 8 mph in the morning.

Monday Night

Partly cloudy, with a low around 31.

Tuesday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.

Tuesday Night

Partly cloudy, with a low around 33.

Wednesday

A slight chance of showers. Sunny, with a high near 67.

Wednesday Night

Mostly clear, with a low around 36.