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Missoula, MT Weather Tomorrow

Prepare for the week ahead with tomorrow's Missoula weather forecast and a complete 5 day outlook covering precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction throughout the Missoula area.
Updated: Sat Sep 12th 2026 11:15 AM MDT
Missoula, MT Weather – 9-12 – Overcast
65° / 41°
Overcast
Missoula may see overcast, with daytime highs of 65°F and overnight lows near 41°F. There might be light rainfall having a 14% chance with an estimated 0in. Winds will be light at 7mph and gusts of 14.3mph at 5 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 75% at 11 PM and 37% being its lowest at 4 PM. Barometric pressure is its highest of 30inHg at 12 PM, a lowest point of 29.87inHg at 5 PM with an avg 29.91inHg.
Missoula, MT Weather – 9-13 – Sunny
56° / 40°

Weather Tomorrow

Sunny
In Missoula, sunshine is likely with a high near 56°F and a low around 40°F. Rainfall predicted to have a 57% chance with an estimated 0.06in. Wind will be moderate, blowing around 14mph on average and gusts of 21.6mph at 5 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 87% at 6 AM and 43% being its lowest at 6 PM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.82inHg at 1 PM with an avg 29.87inHg.
Missoula, MT Weather – 9-14 – Scattered Showers
53° / 41°
Scattered Showers
Scattered showers are in the forecast for Missoula, with a high of 53°F and a low of 41°F. There's a moderate 50% chance of rainfall with an estimated 0.03in. Winds will be light at 8mph and gusts of 25.5mph at 4 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 89% at 7 AM and 50% being its lowest at 6 PM. Barometric pressure is its highest of 30.11inHg at 10 PM, a lowest point of 29.94inHg at 1 AM with an avg 30.03inHg.
Missoula, MT Weather – 9-15 – Overcast
63° / 39°
Overcast
It will be overcast in Missoula, with a high of 63°F and a low of 39°F. There might be light rainfall having a 13% chance. Winds will be light at 6mph and gusts of 16.1mph at 10 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 85% at 5 AM and 32% being its lowest at 3 PM. Barometric pressure is its highest of 30.15inHg at 11 PM, a lowest point of 29.85inHg at 5 PM with an avg 30inHg.
Missoula, MT Weather – 9-16 – Sunny
66° / 38°
Sunny
Daytime highs will reach 66°F with lows dropping to 38°F in Missoula, where bright and sunny conditions. Rainfall predicted to have a 57% chance with an estimated 0.12in. Winds will be light at 6mph and gusts of 17mph at 8 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 98% at 9 AM and 31% being its lowest at 5 PM. Barometric pressure is its highest of 30.32inHg at 8 AM, a lowest point of 29.98inHg at 12 AM with an avg 30.16inHg.
Missoula, MT Weather – 9-17 – Sunny
71° / 43°
Sunny
Missoula is set for a sunny day with temperatures peaking at 71°F and dipping to 43°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 6mph and gusts of 15.4mph at 9 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 71% at 6 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.21inHg at 6 AM, a lowest point of 30.05inHg at 6 PM with an avg 30.15inHg.

Currently

Overcast 52°F
30.01 inHg.
Barometer
59%
Humidity
SE 4.7 mph
Wind
Overcast

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