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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.

57°F

14°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 NW Augusta MT

Juneteenth
High: 63 °F
Partly Sunny
Tonight
Low: 42 °F
Partly Cloudy
Saturday
High: 70 °F
Mostly Sunny
Saturday Night
Low: 43 °F
Partly Cloudy
Sunday
High: 59 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 39 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 58 °F
Mostly Sunny
then Chance
Showers
Monday Night
Low: 39 °F
Partly Cloudy
Tuesday
High: 67 °F
Sunny

Detailed Forecast

Juneteenth

Partly sunny, with a high near 63. Southeast wind 7 to 9 mph, with gusts as high as 18 mph.

Tonight

Partly cloudy, with a low around 42. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

Saturday

Mostly sunny, with a high near 70. Light west wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

Saturday Night

Partly cloudy, with a low around 43. West wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 23 mph.

Sunday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 59. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Sunday Night

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 39. North northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%.

Monday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 58. Calm wind becoming northeast around 6 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 39. East northeast wind around 6 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 67.

Tuesday Night

Partly cloudy, with a low around 44.

Wednesday

Mostly sunny, with a high near 72.

Wednesday Night

Partly cloudy, with a low around 47.

Thursday

A slight chance of showers. Mostly sunny, with a high near 73.