Wintry Weather Across the Northern Tier of the U.S.; Fire Weather Concerns in California

Wintry weather is expected from the Northern Plains to Upper Great Lakes with periods of snow and freezing rain. Another system will bring more snow to the Northern Rockies and Northern Plains Wednesday night into Thursday. Meanwhile, fire weather and air quality concerns persist for portions of the Western U.S., including California. Temperatures will run above normal over much of the East. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from October 21, 12:00 PM MDT until October 22, 10:00 AM MDT

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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167ft.

Mostly Cloudy

-2°C

28°F

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	-3°C (27°F)
Visibility	16 km
Last update	20 Oct 11:20 PM MDT

More Information:

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

Extended Forecast for

Lewistown MT

Winter Weather Advisory October 21, 12:00pm until October 22, 10:00am

Click here for hazard details and duration

Winter Weather Advisory

Tonight

Chance Snow
Low: -6 °C
Wednesday

Partly Sunny
then
Rain/Snow
Likely
High: 3 °C
Wednesday
Night

Snow
Low: -10 °C
Thursday

Chance Snow
then Slight
Chance Snow
High: -6 °C
Thursday
Night

Mostly Cloudy
Low: -16 °C
Friday

Partly Sunny
then Chance
Snow
High: -7 °C
Friday
Night

Snow
Low: -15 °C
Saturday

Snow Likely
High: -10 °C
Saturday
Night

Chance Snow
Low: -19 °C

Detailed Forecast

Tonight

A chance of snow between midnight and 4am. Mostly cloudy, with a low around -6. Southeast wind 8 to 11 km/h. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half centimeter possible.

Wednesday

A chance of rain before 3pm, then a chance of rain and snow between 3pm and 4pm, then snow likely after 4pm. Partly sunny, with a high near 3. South southeast wind 8 to 13 km/h becoming north northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half centimeter possible.

Wednesday Night

Snow. Low around -10. North northwest wind 14 to 16 km/h. Chance of precipitation is 90%. New snow accumulation of 6 to 10 centimeters possible.

Thursday

A 50 percent chance of snow, mainly before noon. Cloudy, with a high near -6. North northwest wind 14 to 16 km/h. New snow accumulation of 1 to 3 centimeters possible.

Thursday Night

Mostly cloudy, with a low around -16. North northwest wind 5 to 10 km/h becoming south southeast after midnight.

Friday

A 30 percent chance of snow after noon. Mostly cloudy, with a high near -7. Light southeast wind becoming east 9 to 14 km/h in the afternoon. New snow accumulation of less than a half centimeter possible.

Friday Night

Snow. Low around -15. East wind around 13 km/h. Chance of precipitation is 80%. New snow accumulation of 8 to 12 centimeters possible.

Saturday

Snow likely. Cloudy, with a high near -10. North wind 11 to 18 km/h.

Saturday Night

A chance of snow. Mostly cloudy, with a low around -19.

Sunday

Partly sunny, with a high near -11.

Sunday Night

Partly cloudy, with a low around -19.

Monday

Mostly sunny, with a high near -2.