Gallatin County Weather Forecast
Gallatin County weather: 67°F, light drizzle. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Live radar and satellite over Gallatin County
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Radar frames: RainViewer (global composite, ~10 minute refresh). Satellite: NASA GIBS MODIS true colour, previous day. Coverage and refresh vary by region.
Weather in Gallatin County right now
Source: Open-Meteo. Updated 9:25 PM, Aug 22 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
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Gallatin County weather - more answers
Explore Gallatin County
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Frequently asked questions
Where is Gallatin County?
Gallatin County is a county in Montana. Its coordinates are 45.677, -111.0429. It lies in North America.
What is the weather like in Gallatin County right now?
It is currently 67°F (20°C) with light drizzle. Humidity is 47% and wind is 12 mph.
When is the best time to visit Gallatin County?
June, July and August offer the most comfortable conditions in Gallatin County, which has a subarctic climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Gallatin County in?
Gallatin County observes America/Denver (UTC-06:00). The local time is 9:25 PM.
How many people live in Gallatin County?
Gallatin County has a population of approximately 125.000.
What are the top things to do in Gallatin County?
Popular options include Missouri River, Yellowstone (UNESCO World Heritage Site), Yellowstone National Park, Grand Teton National Park and Grand Teton.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 9:25 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
