Montana Climate and Average Weather
Climate of Montana: average temperatures, rainfall and seasons month by month.
Climate in Montana month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 32° | 14° | 1,0 in | ★★☆☆☆ |
| February | 34° | 13° | 1,6 in | ★★☆☆☆ |
| March | 49° | 27° | 1,7 in | ★★★☆☆ |
| April | 56° | 31° | 1,3 in | ★★★☆☆ |
| May | 65° | 40° | 2,5 in | ★★★★☆ |
| June | 73° | 47° | 1,9 in | ★★★★★ |
| July | 86° | 56° | 0,6 in | ★★★★★ |
| August | 82° | 53° | 0,7 in | ★★★★★ |
| September | 74° | 47° | 1,1 in | ★★★★★ |
| October | 58° | 35° | 1,1 in | ★★★★☆ |
| November | 45° | 26° | 1,0 in | ★★★☆☆ |
| December | 40° | 25° | 1,4 in | ★★☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Recent extremes in Montana
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Montana compares with nearby places
Annual averages, and the difference against Montana.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Yellowstone (UNESCO World Heritage Site) | 165 mi | 36°F | 42°F cooler | 25 in |
| Yellowstone National Park | 165 mi | 36°F | 42°F cooler | 25 in |
| Grand Teton National Park | 204 mi | 39°F | 39°F cooler | 30 in |
| Grand Teton | 206 mi | 18°F | 60°F cooler | 51 in |
| Teton County | 224 mi | 41°F | 37°F cooler | 26 in |
Climate by national park in Montana
1 national parks mapped in this atlas
Climate by city in Montana
1 cities mapped in this atlas
Climate by county in Montana
1 counties mapped in this atlas
Climate by river in Montana
1 rivers mapped in this atlas
Best time to visit Montana
Go in June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Montana
Today is slightly warmer than average for August. The forecast high of 88°F is 6.8°F above the 82°F typical for this month.
A 56% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 81°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Montana is a state in United States. Montana is a US state with its capital at Helena. It has a population of about 1.1 million. The capital is Helena.
Right now it is 69°F (20°C) in Montana with overcast. It feels like 69°F. Today runs from 65°F to 88°F. Chance of precipitation is 56%. Sightseeing conditions score 8.3/10 - good conditions.
The best time to visit Montana is June, July, August and September. The climate is subarctic. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 86°F, while February is the coldest with lows near 13°F.
Nearby highlights include Glacier National Park, Missouri River, Yellowstone (UNESCO World Heritage Site) and Yellowstone National Park.
In plain terms. Today is slightly warmer than average for August. The forecast high of 88°F is 6.8°F above the 82°F typical for this month. The best window to be outside is roughly 9 AM to 12 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Montana today at 9.5/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Montana
| Type | State |
|---|---|
| Country | United States |
| Continent | North America |
| Coordinates | 46°35′20.8″N 112°2′20.8″W (46.5891, -112.0391) |
| Capital | Helena |
| Population | 1.130.000 |
| Area | 147.040 sq mi |
| Abbreviation | MT |
| Time zone | America/Denver |
| Local time | 7:46 PM (UTC-06:00) |
| Best months | June, July, August and September |
| Climate | Subarctic |
Weather map for Montana
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Montana
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Montana?
Montana is a state in United States. Its coordinates are 46.5891, -112.0391. It lies in North America.
What is the weather like in Montana right now?
It is currently 69°F (20°C) with overcast. Humidity is 68% and wind is 6 mph.
When is the best time to visit Montana?
June, July, August and September offer the most comfortable conditions in Montana, which has a subarctic climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Montana in?
Montana observes America/Denver (UTC-06:00). The local time is 7:46 PM.
How many people live in Montana?
Montana has a population of approximately 1.1 million.
What are the top things to do in Montana?
Popular options include Glacier National Park, Missouri River, Yellowstone (UNESCO World Heritage Site), Yellowstone National Park, Grand Teton National Park and Grand Teton.
What places are in Montana?
Montana covers 4 places in this atlas, including Glacier National Park, Bozeman, Gallatin County and Missouri River.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - 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 7:46 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
