Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

27°F

-3°C

Humidity	45%
Wind Speed	NA 10 MPH
Barometer	NA
Dewpoint	8°F (-13°C)
Visibility	NA
Wind Chill	18°F (-8°C)
Last update	10 Mar 05:00 PM MDT

More Information:

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

Extended Forecast for

6 Miles WSW Windham MT

Winter Storm Watch March 12, 06:00pm until March 14, 06:00pm

High Wind Warning March 12, 12:00am until March 12, 06:00pm

Click here for hazard details and duration

Winter Storm Watch

High Wind Warning

Tonight
Low: 16 °F
Chance Snow
then Mostly
Clear
Wednesday
High: 41 °F
Mostly Sunny
and Breezy
then Slight
Chance Snow
and Windy
Wednesday Night
Low: 36 °F⇑
Chance Snow
and Windy
Thursday
High: 46 °F
Very Windy.
Rain/Snow
Likely then
Snow
Thursday Night
Low: 24 °F
Snow and
Windy
Friday
High: 38 °F
Snow
Friday Night
Low: 20 °F
Snow
Saturday
High: 33 °F
Snow and
Breezy
Saturday Night
Low: 8 °F
Snow

Detailed Forecast

Tonight

A 30 percent chance of snow, mainly before 7pm. Partly cloudy, with a low around 16. West wind 13 to 18 mph, with gusts as high as 26 mph. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

A 20 percent chance of snow after 4pm. Mostly sunny, with a high near 41. Windy, with a west wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph.

Wednesday Night

A 40 percent chance of snow. Mostly cloudy, with a temperature rising to around 40 by 3am. Windy, with a west southwest wind 18 to 28 mph increasing to 33 to 43 mph after midnight. Winds could gust as high as 65 mph. Little or no snow accumulation expected.

Thursday

Rain and snow likely before 9am, then snow. High near 46. Very windy, with a west southwest wind 45 to 50 mph decreasing to 40 to 45 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Thursday Night

Snow. Low around 24. Windy, with a west wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow. High near 38. West wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow. Low around 20. North northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday

Snow. Cloudy, with a high near 33. Breezy, with a north northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

Saturday Night

Snow, mainly before midnight. Mostly cloudy, with a low around 8.

Sunday

A chance of snow. Partly sunny, with a high near 30.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 16.

Monday

A chance of rain and snow. Mostly cloudy, with a high near 47.

Monday Night

A chance of rain and snow. Mostly cloudy, with a low around 37. Breezy.

Tuesday

A slight chance of rain. Partly sunny, with a high near 60. Breezy.