Missouri River Weather Forecast
Missouri River weather: 64°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Missouri River is a river in Montana. Missouri River is a river known as the longest river in North America.
Right now it is 64°F (18°C) in Missouri River with partly cloudy. It feels like 58°F. Today runs from 59°F to 86°F. Chance of precipitation is 4%. Sightseeing conditions score 9.5/10 - excellent - go now.
The best time to visit Missouri River 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 Yellowstone (UNESCO World Heritage Site), Yellowstone National Park, Glacier National Park and Grand Teton National Park.
In plain terms. Today is slightly warmer than average for August. The forecast high of 86°F is 4.1°F above the 82°F typical for this month. The best window to be outside is roughly 10 AM to 1 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Missouri River 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.
Weather in Missouri River right now
Source: Open-Meteo. Updated 7:36 AM, Aug 25 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Missouri River
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | ☁️ Overcast | 86° / 59° | 4% | 13 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 91° / 63° | 13% | 12 mph | 7 |
| Thu, Aug 27 | ☁️ Overcast | 93° / 60° | 45% | 17 mph | 5 |
| Fri, Aug 28 | ☁️ Overcast | 89° / 58° | 21% | 13 mph | 6 |
| Sat, Aug 29 | 🌦️ Light drizzle | 82° / 56° | 44% · 0,0 in | 14 mph | 6 |
| Sun, Aug 30 | ☁️ Overcast | 85° / 53° | 29% | 12 mph | 7 |
| Mon, Aug 31 | 🌦️ Drizzle | 88° / 55° | 12% · 0,1 in | 17 mph | 6 |
| Tue, Sep 1 | ☁️ Overcast | 87° / 51° | 18% | 10 mph | 7 |
| Wed, Sep 2 | ⛅ Partly cloudy | 82° / 54° | 24% | 13 mph | 6 |
| Thu, Sep 3 | 🌤️ Mainly clear | 80° / 53° | 24% | 13 mph | 6 |
| Fri, Sep 4 | ☁️ Overcast | 68° / 50° | 18% | 7 mph | 4 |
| Sat, Sep 5 | ⛅ Partly cloudy | 77° / 45° | 24% | 8 mph | 6 |
| Sun, Sep 6 | ☁️ Overcast | 60° / 43° | 23% | 21 mph | 4 |
| Mon, Sep 7 | ⛅ Partly cloudy | 75° / 36° | 23% | 8 mph | 6 |
| Tue, Sep 8 | ☀️ Clear sky | 84° / 48° | 19% | 8 mph | 6 |
| Wed, Sep 9 | ☀️ Clear sky | -- / -- | 10% | -- | — |
Climate in Missouri River 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).
Weather map for Missouri River
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.
Air quality and pollen in Missouri River
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Missouri River
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.
Explore Missouri River
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Missouri River?
Missouri River is a river in Montana. Its coordinates are 46.5891, -112.0391. It lies in North America.
What is the weather like in Missouri River right now?
It is currently 64°F (18°C) with partly cloudy. Humidity is 39% and wind is 7 mph.
When is the best time to visit Missouri River?
June, July, August and September offer the most comfortable conditions in Missouri River, which has a subarctic climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Missouri River in?
Missouri River observes America/Denver (UTC-06:00). The local time is 7:36 AM.
What are the top things to do in Missouri River?
Popular options include Yellowstone (UNESCO World Heritage Site), Yellowstone National Park, Glacier National Park, Grand Teton National Park and Grand Teton.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) - 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 25, 2026 at 7:36 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
