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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.

Hazardous Weather Conditions

Short Term Forecast

Current conditions at

MOUNT LOCKHART (MTKM8)

Lat: 47.91727°NLon: 112.8238°WElev: 6400.0ft.

50°F

10°C

Humidity	NA
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

30 Miles SSW Heart Butte MT

This Afternoon
High: 49 °F
Chance
Showers
Tonight
Low: 34 °F
Chance
Showers then
Partly Cloudy
Juneteenth
High: 55 °F
Mostly Sunny
Friday Night
Low: 39 °F
Partly Cloudy
Saturday
High: 58 °F
Mostly Sunny
Saturday Night
Low: 41 °F
Slight Chance
Showers then
Partly Cloudy
Sunday
High: 49 °F
Mostly Sunny
then Showers
Likely
Sunday Night
Low: 35 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 49 °F
Chance
Showers

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 49. West northwest wind 11 to 13 mph, with gusts as high as 20 mph.

Tonight

A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 34. Northwest wind 9 to 13 mph becoming southeast after midnight.

Juneteenth

Mostly sunny, with a high near 55. Southeast wind 10 to 13 mph, with gusts as high as 18 mph.

Friday Night

Partly cloudy, with a low around 39. East southeast wind 9 to 14 mph, with gusts as high as 20 mph.

Saturday

Mostly sunny, with a high near 58. South southwest wind 8 to 18 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

Saturday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 41. West wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 29 mph.

Sunday

Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 49. West wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

Sunday Night

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 35. North northwest wind 8 to 13 mph becoming northeast after midnight. Winds could gust as high as 18 mph.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 49.

Monday Night

Mostly clear, with a low around 35.

Tuesday

Sunny, with a high near 58.

Tuesday Night

Partly cloudy, with a low around 41.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 61.