National Weather Service

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SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579° N Lon: 109.26247° W Elev: 4723.0 ft.

52°F

11°C

Humidity	46%
Wind Speed	ESE 3 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	09 Jun 05:00 AM MDT

More Information:

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

Detailed forecast for

Snowy and Judith Mountains

Today

Mostly cloudy. Chance of rain showers and slight chance of thunderstorms early in the afternoon. Chance of thunderstorms late in the afternoon. Highs 60 to 68. West winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 50 percent.

Tonight

Colder. Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 37 to 43. West winds 10 to 20 mph with gusts to around 45 mph. Chance of precipitation 50 percent.

Wednesday

Windy. Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs 48 to 56. West winds 20 to 35 mph with gusts to around 55 mph.

Wednesday Night

Windy. Rain showers. Light snow accumulations. Lows in the upper 30s. West winds 20 to 35 mph with gusts to around 60 mph. Chance of showers 90 percent.

Thursday

Windy. Mostly cloudy with chance of rain showers in the morning, then mostly sunny with slight chance of thunderstorms in the afternoon. Highs 54 to 62. West winds 10 to 30 mph. Gusts up to 50 mph decreasing to 40 mph in the afternoon. Chance of precipitation 40 percent.

Thursday Night And Friday

Mostly clear. Lows around 40. Highs 59 to 67.

Friday Night

Partly cloudy with slight chance of thunderstorms in the evening, then mostly cloudy with chance of rain showers after midnight. Lows in the lower 40s. Chance of precipitation 40 percent.

Saturday

Partly sunny. Chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 54 to 60. Chance of precipitation 50 percent.

Saturday Night Through Sunday Night

Partly cloudy with a 20 percent chance of thunderstorms. Lows around 40. Highs 57 to 63.

Monday

Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 66. Chance of precipitation 40 percent.