Gallatin County, MT Weather Forecast
County weather hub
Mostly Sunny then Chance Showers And Thunderstorms
Compare major city weather across Gallatin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 68. South wind 9 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Gallatin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Gallatin County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:04 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Gallatin County
Saturday looks like the warmest upcoming period in Gallatin County at 68 degrees F.
Monday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday at about 9 to 20 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:04 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers. Mostly cloudy, with a low around 42. South southwest wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
A chance of rain showers before noon, then showers and thunderstorms. Mostly cloudy, with a high near 60. South southwest wind 7 to 13 mph, with gusts as high as 24 mph.
Rain likely before 9pm, then rain and snow likely. Mostly cloudy, with a low around 37. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Rain and snow. Mostly cloudy, with a high near 50.
A chance of rain and snow. Mostly cloudy, with a low around 34.
A chance of rain and snow. Partly sunny, with a high near 54.
Partly cloudy, with a low around 35.
A slight chance of rain between noon and 3pm, then a slight chance of rain and snow. Partly sunny, with a high near 57.
A chance of rain and snow. Mostly cloudy, with a low around 36.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Sunny then Chance Showers And Thunderstorms
|
68°F |
9 to 20 mph
S
|
|
Saturday Night
Apr 11
|
Chance Rain Showers
|
42°F |
8 to 15 mph
SSW
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
60°F |
7 to 13 mph
SSW
|
|
Sunday Night
Apr 12
|
Rain And Snow Likely
|
37°F |
6 to 10 mph
SSW
|
|
Monday
Apr 13
|
Rain And Snow
|
50°F |
6 to 10 mph
W
|
|
Monday Night
Apr 13
|
Chance Rain And Snow
|
34°F |
3 to 8 mph
W
|
|
Tuesday
Apr 14
|
Chance Rain And Snow
|
54°F |
3 to 10 mph
WSW
|
|
Tuesday Night
Apr 14
|
Partly Cloudy
|
35°F |
9 mph
SSW
|
|
Wednesday
Apr 15
|
Partly Sunny then Slight Chance Rain And Snow
|
57°F |
9 to 16 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Rain And Snow
|
36°F |
8 to 15 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Gallatin County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Gallatin County.
Largest mapped city population in this region: 10,390.
