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Weather in Montana for October 2025

Your guide to Montana weather in October - trends and predictions

    Official Weather Alert ⚠️

  • Winter Weather Advisory - See hour by hour.

    • Snow Forecast ❄️

  • Snowfall in Montana during October is quite rare, with fewer than 2 snowy days on average.
    According to Montana snow forecast for October 2025, 4 snowy days are expected until the end of the month. The closest date with snow is Saturday, October 25.

    • Temperatures

  • Until now, October 2025 in Montana is slightly cooler than the historical average by -1.8 °F.

  • The forecast for the next days in Montana predicts temperatures to be around 6 °F, close to the historical average.

  • In general, the average temperature in Montana at the beginning of October is 16 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4.1 °F by the end of October.

    • Rain 🌧️

  • Montana experiences moderate rainfall in October, with an average of 8 rainy days and a total precipitation of 77.8 mm.

    • More

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

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/3°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Montana Weather October

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

What’s the Weather Like in Montana This October?

Discover the average temperatures and weather trends across Montana’s cities this October.
CloudyGlacier National Park13 °F / 3 °FSunnyBillings20 °F / 5 °FPartly cloudyMissoula16 °F / 3 °FSunnyBozeman15 °F / 3 °FMore Locations

Temperatures trend during October in Montana

See the weather trend as well as the moving average line

October weather in Montana day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Overcast
Overcast
 17° /6° 3.5 mm 0 cm
Oct. 2 Sunny
Sunny
 15° /8° 0 mm 0 cm
Oct. 3 Sunny
Sunny
 16° /5° 0 mm 0 cm
Oct. 4 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /5° 1.2 mm 0 cm
Oct. 5 Overcast
Overcast
 11° /3° 0.5 mm 0 cm
Oct. 6 Partly cloudy
Partly cloudy
 17° /1° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 20° /5° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 21° /5° 0 mm 0 cm
Oct. 9 Overcast
Overcast
 20° /6° 0 mm 0 cm
Oct. 10 Partly cloudy
Partly cloudy
 19° /6° 0 mm 0 cm
Oct. 11 Cloudy
Cloudy
 16° /5° 0 mm 0 cm
Oct. 12 Sunny
Sunny
 13° /2° 37.4 mm 15.1 cm
Oct. 13 Sunny
Sunny
 11° /1° 0 mm 0 cm
Oct. 14 Partly cloudy
Partly cloudy
 15° /3° 0 mm 0 cm
Oct. 15 Overcast
Overcast
 16° /4° 0 mm 0 cm
Oct. 16 Heavy rain at times
Heavy rain at times
 11° /3° 1.8 mm 0 cm
Oct. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /0° 4.6 mm 0 cm
Oct. 18 Partly cloudy
Partly cloudy
 9° /-1° 0.2 mm 0 cm
Oct. 19 Overcast
Overcast
 11° /5° 0 mm 0 cm
Oct. 20 Patchy rain possible
Patchy rain possible
 9° /2° 0.3 mm 0 cm
Oct. 21 Overcast
Overcast
 4° /-5° 0 mm 0 cm
Oct. 22 Partly cloudy
Partly cloudy
 14° /-6° 0 mm 0 cm
Oct. 23 Sunny
Sunny
 9° /-6° 0 mm 0 cm
Oct. 24 Sunny
Sunny
 11° /-5° 0 mm 0 cm
Oct. 25 Patchy rain possible
Patchy rain possible
 5° /1° 3.2 mm 0.3 cm
Oct. 26 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 3° /-6° 3.2 mm 2 cm
Oct. 27 Freezing fog
Freezing fog
 2° /-10° 1.1 mm 0.8 cm
Oct. 28 Moderate snow
Moderate snow
 2° /-7° 2.5 mm 1.8 cm
Oct. 29 Mist
Mist
 4° /-12° 0 mm 0 cm
Oct. 30 Partly cloudy
Partly cloudy
 6° /-7° 0 mm 0 cm
Oct. 31 Mist
Mist
 7° /-5° 2.7 mm 0 cm
Next
Important Notice
Our weather forecast for Montana 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 Montana forecast closer to your planned date for the most up-to-date weather information.
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Montana in October - FAQ

What are the expected maximum and minimum temperatures in Montana during October?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 3°.
How much rainfall should be expected in Montana during October?
Moderate rainfall is anticipated in Montana during October, with a total of 77.8 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Montana during October?
The average wind speed in Montana during October is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

Montana snow forecast October 2025

Track daily snowfall levels and discover Montana’s snowy potential this October ❄️

October rainfall patterns in Montana

Explore the daily rainfall trends and prepare for Montanas October weather 💧

UV exposure in Montana during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Counties in Montana
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Flathead CountyGallatin CountyMissoula CountyYellowstone County
Top locations in Montana
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BillingsBozemanGlacier National ParkMissoula
More Locations

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Location coordinates Where is Montana?

Get accurate weather forecasts for Montana, located at latitude 48.683 and longitude -113.8. Stay updated with localized weather information tailored for Montana.

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