Spring (March–May): Average 3.3–12.7°C, climate gradually transitions from cold to warm, rainfall increases, May is the peak of the rainy season. Common activities: flower viewing, hiking. Recommended clothing: warm jacket, layered clothing.
Summer (June–August): Average 16.6–22.7°C, warm and dry climate, less rainfall, abundant sunshine. Common activities: camping, fishing, rafting. Recommended clothing: light and breathable clothing, hat, sunscreen.
Autumn (September–November): Average 9.0–16.4°C, cool climate, moderate rainfall, leaves changing color. Common activities: fall foliage viewing, hiking, picking. Recommended clothing: warm jacket, long-sleeved clothing.
Winter (December–February): Average -5.1–-1.7°C, cold climate, moderate snowfall, temperatures below freezing. Common activities: skiing, snowshoeing. Recommended clothing: warm jacket, hat, gloves, scarf, snow boots.
Missoula climatological average
Annual average temperature: approx. 8.3°C / Annual rainfall: approx. 302 mm / Summer humidity: 60%–70% / Rainiest month: May
Missoula monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-5.1°C
25.7
February
-1.7°C
20
March
3.3°C
13.7
April
6.5°C
25
May
12.7°C
49.7
June
16.6°C
42.7
July
22.7°C
7.3
August
21.6°C
25.7
September
16.4°C
35.3
October
9°C
12.3
November
0°C
24
December
-2.2°C
20.7
Missoula weather for the next seven days
12/16
Tuesday
Patchy rain nearby
9.3°C/4.1°C
12/17
Wednesday
Heavy rain
4.8°C/-1°C
12/18
Thursday
Moderate or heavy snow showers
1°C/-1°C
12/19
Friday
Light sleet
2.7°C/-5°C
12/20
Saturday
Light freezing rain
-0.3°C/-10.9°C
12/21
Sunday
Patchy moderate snow
-1°C/-12°C
12/22
Monday
Patchy snow nearby
0.8°C/-8.1°C
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