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Planning ahead in Gallatin County? Our extended 14-Day Weather Forecast provides comprehensive 2-week predictions, including daily temperature highs/lows, precipitation probabilities, and long-term atmospheric trend outlooks.

Gallatin County 14-Day Weather Forecast

Sunday, Oct 25, 2026

Nighttime
31°F

Sunny / Clear

Feels like 31°F

Humidity

64%

Wind Speed

3.1 mph

Precipitation

0 in

Pressure

1023 hPa

UV Index

0

Visibility

10 mi

Cloud Cover

0%

Dew Point

22°F

14-Day Extended Weather Forecast

Today

Oct 25

Sunny / Clear
44°H
29°L
0%

Mon

Oct 26

Sunny / Clear
47°H
29°L
0%

Tue

Oct 27

Sunny / Clear
43°H
34°L
24%

Wed

Oct 28

Sunny / Clear
40°H
28°L
0%

Thu

Oct 29

Sunny / Clear
40°H
28°L
0%

Fri

Oct 30

Sunny / Clear
44°H
37°L
0%

Sat

Oct 31

Sunny / Clear
44°H
38°L
0%

Sun

Nov 1

Sunny / Clear
40°H
36°L
0%

Mon

Nov 2

Sunny / Clear
36°H
29°L
0%

Tue

Nov 3

Sunny / Clear
31°H
20°L
0%

Air Quality (AQI)

39Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5

4.2 µg/m³

PM10

4.7 µg/m³

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Waxing Gibbous

Waxing Gibbous

Wind Conditions & Storm Tracking

Wind Direction

190° S

Sustained Wind

3.1 mph

Wind Gusts

3.1 mph

14-Day Temp Range

Expected 14-Day Swings

20°
47°

High and low limits expected over the next two weeks.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

Gallatin County · 45.60°N, 111.30°W
Radar Page
Coordinates45.5951°N, 111.3020°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)39Good
UV Index0Low Risk
Visibility10 milesClear

Frequently Asked Questions

Our 14-day forecast for Gallatin County shows detailed long-term predictions, including daily high and low temperatures, precipitation chances, and overall weather patterns.

About Gallatin County Climate & Weather

Weather forecast for Gallatin County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.