Cold steppe climate
Climate Sun River - Montana
Annual high59ºF
Annual low31ºF
Precipitation12.95 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 39 | 15 | 0.37 | 5 |
| Feb | 41 | 16 | 0.38 | 3 |
| Mar | 49 | 22 | 0.70 | 5 |
| Apr | 58 | 30 | 1.41 | 3 |
| May | 66 | 38 | 2.14 | 1 |
| Jun | 74 | 46 | 2.41 | 0 |
| Jul | 83 | 50 | 1.32 | 0 |
| Aug | 82 | 48 | 1.42 | 0 |
| Sep | 71 | 40 | 1.22 | 0 |
| Oct | 60 | 32 | 0.74 | 2 |
| Nov | 46 | 23 | 0.47 | 4 |
| Dec | 37 | 14 | 0.37 | 5 |
- JanHigh 39ºFLow 15ºFPrecip 0.37 inch
- FebHigh 41ºFLow 16ºFPrecip 0.38 inch
- MarHigh 49ºFLow 22ºFPrecip 0.70 inch
- AprHigh 58ºFLow 30ºFPrecip 1.41 inch
- MayHigh 66ºFLow 38ºFPrecip 2.14 inch
- JunHigh 74ºFLow 46ºFPrecip 2.41 inch
- JulHigh 83ºFLow 50ºFPrecip 1.32 inch
- AugHigh 82ºFLow 48ºFPrecip 1.42 inch
- SepHigh 71ºFLow 40ºFPrecip 1.22 inch
- OctHigh 60ºFLow 32ºFPrecip 0.74 inch
- NovHigh 46ºFLow 23ºFPrecip 0.47 inch
- DecHigh 37ºFLow 14ºFPrecip 0.37 inch
Climate summary
What is the average weather in Sun River, Montana?
Sun River experiences a cold semi-arid climate, marked by very large seasonal temperature contrasts. Summers are warm and bring the most precipitation, though overall rainfall is low. Winters are cold, with regular snowfall. Precipitation is generally low, often arriving in brief showers.
Sun River weather averages
Annual high59ºF
Annual low31ºF
Precipitation12.95 inch
Snowfall28 inch
Daily normals Sun River - Montana - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 36.5 | 12.1 | 0.02 | 0.02 |
| Jan 2 | 36.6 | 12.1 | 0.03 | 0.03 |
| Jan 3 | 36.7 | 12.2 | 0.05 | 0.05 |
| Jan 4 | 36.8 | 12.2 | 0.06 | 0.06 |
| Jan 5 | 36.8 | 12.2 | 0.08 | 0.08 |
| Jan 6 | 36.9 | 12.2 | 0.09 | 0.09 |
| Jan 7 | 37.0 | 12.3 | 0.11 | 0.11 |
| Jan 8 | 37.1 | 12.3 | 0.12 | 0.12 |
| Jan 9 | 37.2 | 12.4 | 0.14 | 0.14 |
| Jan 10 | 37.3 | 12.4 | 0.15 | 0.15 |
| Jan 11 | 37.4 | 12.5 | 0.17 | 0.17 |
| Jan 12 | 37.5 | 12.6 | 0.18 | 0.18 |
| Jan 13 | 37.5 | 12.6 | 0.20 | 0.20 |
| Jan 14 | 37.6 | 12.7 | 0.21 | 0.21 |
| Jan 15 | 37.7 | 12.7 | 0.22 | 0.22 |
| Jan 16 | 37.7 | 12.8 | 0.24 | 0.24 |
| Jan 17 | 37.8 | 12.8 | 0.25 | 0.25 |
| Jan 18 | 37.8 | 12.9 | 0.26 | 0.26 |
| Jan 19 | 37.8 | 12.9 | 0.27 | 0.27 |
| Jan 20 | 37.9 | 13.0 | 0.28 | 0.28 |
| Jan 21 | 37.9 | 13.0 | 0.30 | 0.30 |
| Jan 22 | 37.9 | 13.0 | 0.31 | 0.31 |
| Jan 23 | 37.9 | 13.1 | 0.32 | 0.32 |
| Jan 24 | 37.9 | 13.1 | 0.33 | 0.33 |
| Jan 25 | 37.9 | 13.1 | 0.34 | 0.34 |
| Jan 26 | 37.9 | 13.1 | 0.36 | 0.36 |
| Jan 27 | 37.9 | 13.1 | 0.37 | 0.37 |
| Jan 28 | 37.9 | 13.1 | 0.38 | 0.38 |
| Jan 29 | 37.9 | 13.1 | 0.40 | 0.40 |
| Jan 30 | 37.9 | 13.0 | 0.41 | 0.41 |
| Jan 31 | 37.9 | 13.0 | 0.42 | 0.42 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Sun River - October 2026
| Day | HighºF | LowºF | Precip.inch | Snowinch | Snow depthinch |
|---|---|---|---|---|---|
| Oct 1 | 62.1 | 33.1 | 0.10 | – | – |
| Oct 2 | 61.0 | 35.1 | 0.00 | – | – |
| Oct 3 | 77.0 | 36.0 | 0.00 | – | – |
| Oct 4 | – | – | – | – | – |
| Oct 5 | – | – | – | – | – |
| Oct 6 | – | – | – | – | – |
| Oct 7 | – | – | – | – | – |
| Oct 8 | – | – | – | – | – |
| Oct 9 | – | – | – | – | – |
| Oct 10 | 82.9 | 41.0 | 0.01 | – | – |
| Oct 11 | 64.0 | 30.0 | 1.62 | 8.19 | 6.0 |
| Oct 12 | 34.0 | 28.9 | 0.46 | – | – |
| Oct 13 | 36.0 | 24.1 | 0.00 | – | – |
| Oct 14 | 48.0 | 28.9 | 0.00 | – | – |
| Oct 15 | 55.9 | 36.0 | 0.00 | – | – |
| Oct 16 | 51.1 | 26.1 | 0.00 | – | – |
| Oct 17 | 66.9 | 39.0 | 0.00 | – | – |
| Oct 18 | – | – | – | – | – |
| Oct 19 | – | – | – | – | – |
| Oct 20 | – | – | – | – | – |
| Oct 21 | – | – | – | – | – |
| Oct 22 | – | – | – | – | – |
| Oct 23 | 70.0 | 39.9 | 0.00 | – | – |
| Oct 24 | 46.9 | 21.9 | 0.75 | 2.09 | 2.0 |
| Oct 25 | 46.0 | 23.0 | 0.00 | – | – |
| Oct 26 | 39.0 | 21.0 | 0.00 | – | – |
| Oct 27 | 41.0 | 21.9 | 0.10 | – | – |
| Oct 28 | 50.0 | 33.1 | 0.00 | – | – |
| Oct 29 | 50.0 | 25.0 | 0.00 | – | – |
| Oct 30 | 50.0 | 25.0 | 0.02 | – | – |
| Oct 31 | – | – | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature82.9ºF · Oct 10
- Lowest max temperature34.0ºF · Oct 12
- Highest min temperature41.0ºF · Oct 10
- Lowest min temperature21.0ºF · Oct 26
Geo Sun River - Montana
Location
- Country
- United States
- State
- Montana
- County
- Cascade
- City
- Sun River
- Zip Code
- 59483
- Elevation
- 3389 ft
- Longitude
- -111.73
- Latitude
- 47.53
- ICAO
- –
- IATA
- –