National Weather Service

News Headlines

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.

56°F

13°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

22 Miles S Heart Butte MT

This Afternoon
High: 52 °F
Chance
T-storms
Tonight
Low: 33 °F
Chance
Showers and
Patchy Fog
then Patchy
Fog
Juneteenth
High: 58 °F
Mostly Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 38 °F
Slight Chance
Showers then
Partly Cloudy
Sunday
High: 53 °F
Slight Chance
Showers then
Showers
Likely
Sunday Night
Low: 33 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 52 °F
Chance
Showers

Detailed Forecast

This Afternoon

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 52. North northwest wind 9 to 11 mph, with gusts as high as 18 mph.

Tonight

A 30 percent chance of showers, mainly before 9pm. Patchy fog after 11pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 33. North wind 5 to 9 mph becoming south southeast after midnight.

Juneteenth

Mostly sunny, with a high near 58. Southeast wind 7 to 13 mph, with gusts as high as 22 mph.

Friday Night

Partly cloudy, with a low around 37. Southeast wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

Saturday

Mostly sunny, with a high near 65. West wind 7 to 16 mph, with gusts as high as 26 mph.

Saturday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 38. West wind 9 to 17 mph, with gusts as high as 30 mph.

Sunday

A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. Northwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Sunday Night

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 33. North wind 5 to 10 mph, with gusts as high as 21 mph.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 52.

Monday Night

Partly cloudy, with a low around 33.

Tuesday

Sunny, with a high near 62.

Tuesday Night

Partly cloudy, with a low around 39.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.