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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.

54°F

12°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

17 Miles NW Augusta MT

Tonight
Low: 44 °F
Partly Cloudy
Juneteenth
High: 63 °F
Partly Sunny
Friday Night
Low: 48 °F
Partly Cloudy
Saturday
High: 72 °F
Partly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 49 °F
Slight Chance
Showers then
Partly Cloudy
Sunday
High: 60 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 45 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 58 °F
Slight Chance
Showers then
Chance
T-storms
Monday Night
Low: 44 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 44. North wind around 6 mph becoming calm after midnight.

Juneteenth

Partly sunny, with a high near 63. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Friday Night

Partly cloudy, with a low around 48. East southeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.

Saturday

A slight chance of showers between 1pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 72. Light south southwest wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Saturday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 49. West wind 5 to 11 mph, with gusts as high as 23 mph.

Sunday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 60. Calm wind becoming north 5 to 7 mph in the morning.

Sunday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45. North wind 5 to 8 mph becoming calm after midnight.

Monday

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

Monday Night

Partly cloudy, with a low around 44.

Tuesday

Sunny, with a high near 68.

Tuesday Night

Mostly clear, with a low around 50.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.

Wednesday Night

Partly cloudy, with a low around 52.

Thursday

Mostly sunny, with a high near 76.