Climate averages 1991–2020
Missoula weather
in June.
A warm, moderately wet month: the 4th warmest and one of the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Missoula: daytime highs average 22.2°C and nights cool to about 10.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 56 mm of rain on roughly 10 days, which makes June a moderately wet month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 15 h 48 min on an average June day.
The nearest other city in this atlas is Spokane Valley (261 km away). In June its highs average 23.0°C, 0.9°C warmer than Missoula, with 37 mm of rain.
Among the 498 cities listed in the United States, Missoula ranks 464th of 498 for the warmest June highs and 175th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Missoula is 5.7°C cooler than that mean.
From June to July, average highs rise by 6.6°C to 28.8°C, and monthly rainfall falls from 56 mm to 19 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Missoula climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.6°C-6.9°C | -6.9°C | 45 | 10.8 | 9.09 h |
| February | 2.7°C-5.7°C | -5.7°C | 41 | 9.9 | 10.310 h |
| March | 7.0°C-1.7°C | -1.7°C | 44 | 11.0 | 11.912 h |
| April | 11.4°C1.5°C | 1.5°C | 53 | 11.4 | 13.614 h |
| May | 17.9°C6.3°C | 6.3°C | 56 | 11.0 | 15.015 h |
| June, selected | 22.2°C10.4°C | 10.4°C | 56 | 10.0 | 15.816 h |
| July | 28.8°C15.3°C | 15.3°C | 19 | 4.6 | 15.515 h |
| August | 28.6°C14.9°C | 14.9°C | 19 | 3.8 | 14.214 h |
| September | 22.5°C9.8°C | 9.8°C | 30 | 5.8 | 12.613 h |
| October | 13.6°C3.5°C | 3.5°C | 44 | 8.6 | 10.911 h |
| November | 5.2°C-2.3°C | -2.3°C | 50 | 10.0 | 9.49 h |
| December | -0.1°C-7.4°C | -7.4°C | 51 | 10.4 | 8.69 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Spokane Valley in JuneUnited States · 261 kmHigh 23.0°C · Low 10.9°C · 37 mm rain
- Spokane in JuneUnited States · 274 kmHigh 23.8°C · Low 11.6°C · 33 mm rain
- Lethbridge in JuneCanada · 326 kmHigh 20.9°C · Low 9.9°C · 92 mm rain
- Kennewick in JuneUnited States · 400 kmHigh 28.8°C · Low 15.2°C · 13 mm rain
- Boise in JuneUnited States · 401 kmHigh 26.5°C · Low 13.0°C · 16 mm rain
- Tri-Cities in JuneUnited States · 404 kmHigh 28.9°C · Low 15.3°C · 13 mm rain
- Meridian in JuneUnited States · 408 kmHigh 26.6°C · Low 13.1°C · 16 mm rain
- Nampa in JuneUnited States · 422 kmHigh 27.3°C · Low 14.2°C · 16 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Missoula) is explained once on the Missoula year overview and on the Sources, method and limits page.