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United States weather

Weather in Missoula County, Montana for October 2025

Your guide to Missoula County weather in October - trends and predictions

    Temperatures

  • In general, the average temperature in Missoula County at the beginning of October is 19.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.4 °F by the end of October.

    • Rain 🌧️

  • Missoula County experiences moderate rainfall in October, with an average of 7 rainy days and a total precipitation of 31.4 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/3°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Missoula County Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
22°
2
Partly cloudy
15°
3
Sunny
16°
4
Overcast
24°
5
Partly cloudy
16°
6
Partly cloudy
22°
7
Partly cloudy
22°
8
Sunny
25°
9
Overcast
21°
10
Overcast
16°
11
Overcast
20°
12
Overcast
21°
13
Sunny
22°
14
Partly cloudy
23°
15
Partly cloudy
23°
16
Moderate or heavy rain shower
12°
17
Moderate or heavy rain shower
8°
18
Cloudy
9°
19
Cloudy
14°
20
Partly cloudy
20°
21
Moderate or heavy rain shower
13°
22
Sunny
10°
23
Patchy rain possible
11°
24
Partly cloudy
9°
25
Partly cloudy
12°
26
Partly cloudy
17°
27
Heavy rain at times
15°
28
Heavy rain at times
7°
29
Overcast
6°
30
Cloudy
7°
31
Light sleet
9°

Temperatures trend during October in Missoula County

See the weather trend as well as the moving average line

October weather in Missoula County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Sunny
Sunny
 22° /2° 0 mm 6
Oct. 2 Partly cloudy
Partly cloudy
 15° /7° 0 mm 5
Oct. 3 Sunny
Sunny
 16° /2° 0 mm 5
Oct. 4 Overcast
Overcast
 24° /3° 3.3 mm 5
Oct. 5 Partly cloudy
Partly cloudy
 16° /5° 0 mm 5
Oct. 6 Partly cloudy
Partly cloudy
 22° /4° 0 mm 6
Oct. 7 Partly cloudy
Partly cloudy
 22° /7° 0 mm 6
Oct. 8 Sunny
Sunny
 25° /6° 0 mm 6
Oct. 9 Overcast
Overcast
 21° /6° 0 mm 5
Oct. 10 Overcast
Overcast
 16° /8° 0 mm 4
Oct. 11 Overcast
Overcast
 20° /5° 0 mm 5
Oct. 12 Overcast
Overcast
 21° /7° 0 mm 5
Oct. 13 Sunny
Sunny
 22° /4° 0 mm 6
Oct. 14 Partly cloudy
Partly cloudy
 23° /7° 0 mm 6
Oct. 15 Partly cloudy
Partly cloudy
 23° /7° 0 mm 6
Oct. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /6° 4.4 mm 3
Oct. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /2° 6.6 mm 2
Oct. 18 Cloudy
Cloudy
 9° /0° 0 mm 2
Oct. 19 Cloudy
Cloudy
 14° /5° 0 mm 3
Oct. 20 Partly cloudy
Partly cloudy
 20° /2° 0 mm 6
Oct. 21 Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /6° 8.4 mm 3
Oct. 22 Sunny
Sunny
 10° /3° 0 mm 4
Oct. 23 Patchy rain possible
Patchy rain possible
 11° /0° 0.4 mm 3
Oct. 24 Partly cloudy
Partly cloudy
 9° /1° 0 mm 3
Oct. 25 Partly cloudy
Partly cloudy
 12° /-2° 0.5 mm 4
Oct. 26 Partly cloudy
Partly cloudy
 17° /0° 0 mm 5
Oct. 27 Heavy rain at times
Heavy rain at times
 15° /2° 2.9 mm 4
Oct. 28 Heavy rain at times
Heavy rain at times
 7° /1° 1.7 mm 2
Oct. 29 Overcast
Overcast
 6° /-2° 0 mm 2
Oct. 30 Cloudy
Cloudy
 7° /-7° 0 mm 2
Oct. 31 Light sleet
Light sleet
 9° /-1° 3.1 mm 2
Next
Important Notice
Our weather forecast for Missoula County in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Missoula County forecast closer to your planned date for the most up-to-date weather information.
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Missoula County in October - FAQ

What are the expected maximum and minimum temperatures in Missoula County during October?
During October, expect a variety of temperatures with highs around 16° and lows near 3°, suitable for diverse activities and preferences.
How much rainfall should be expected in Missoula County during October?
In October, Missoula County can expect light to moderate rainfall, totaling 31.4 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Missoula County during October?
The average wind speed in Missoula County during October is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Missoula County

Explore the daily rainfall trends and prepare for Missoula Countys October weather 💧

UV exposure in Missoula County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Location coordinates Where is Missoula County?

Get accurate weather forecasts for Missoula County, located at latitude 46.872 and longitude -113.994. Stay updated with localized weather information tailored for Missoula County.

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