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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

GIBSON DAM WEATHER STATION NEAR AUGUSTA 19WNW (GDMM8)

Lat: 47.60111°NLon: 112.75472°WElev: 4604.0ft.

44°F

7°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

21 Miles NW Augusta MT

Today
High: 50 °F
Chance
Showers
Tonight
Low: 38 °F
Chance
Showers then
Mostly Cloudy
Juneteenth
High: 55 °F
Partly Sunny
Friday Night
Low: 43 °F
Partly Cloudy
Saturday
High: 62 °F
Mostly Sunny
Saturday Night
Low: 42 °F
Partly Cloudy
Sunday
High: 51 °F
Mostly Sunny
then Chance
Showers
Sunday Night
Low: 38 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 53 °F
Mostly Sunny
then Chance
Showers

Detailed Forecast

Today

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 50. West wind 9 to 11 mph becoming north northeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 38. North wind 8 to 13 mph becoming light and variable after midnight.

Juneteenth

Partly sunny, with a high near 55. Southeast wind 6 to 15 mph, with gusts as high as 23 mph.

Friday Night

Partly cloudy, with a low around 43. East southeast wind 12 to 17 mph becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 24 mph.

Saturday

Mostly sunny, with a high near 62. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 42. West wind 13 to 21 mph, with gusts as high as 28 mph.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 51. West wind around 10 mph becoming east in the morning.

Sunday Night

A chance of showers before midnight. Mostly cloudy, with a low around 38. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

Monday

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

Monday Night

Mostly clear, with a low around 41.

Tuesday

Sunny, with a high near 61.

Tuesday Night

Partly cloudy, with a low around 47.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 62.