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.

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

27 Miles S Heart Butte MT

This Afternoon
High: 55 °F
Chance
Showers
Tonight
Low: 36 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 55 °F
Chance
Showers
Thursday Night
Low: 34 °F
Mostly Cloudy
Juneteenth
High: 61 °F
Mostly Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 37 °F
Partly Cloudy
Sunday
High: 53 °F
Partly Sunny
then Chance
Showers

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 55. West northwest wind around 11 mph, with gusts as high as 22 mph.

Tonight

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 36. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Thursday

A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 55. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

Thursday Night

Mostly cloudy, with a low around 34. North wind 5 to 8 mph becoming east after midnight.

Juneteenth

Mostly sunny, with a high near 61. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

Friday Night

Partly cloudy, with a low around 38. Southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

Saturday

Mostly sunny, with a high near 65. Light west southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 26 mph.

Saturday Night

Partly cloudy, with a low around 37. West wind 6 to 15 mph, with gusts as high as 28 mph.

Sunday

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 53.