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Weather in Montana for October 2026

Your guide to Montana weather in October - trends and predictions

    Snow Forecast ❄️

  • Montana typically experiences moderate snowfall in October, with an average of 6 snowy days.

    • Temperatures

  • In general, the average temperature in Montana at the beginning of October is 16.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.7 °C by the end of October.

    • More

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

Average dry days
19
Dry days
Average rainy days
6
Rainy days
Average snowy days
6
Snow days
Average temperatures
13°/2°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
56 %
Avg humidity

Montana Weather October

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

What’s the Weather Like in Montana This October?

Discover the average temperatures and weather trends across Montana’s cities this October.
CloudyBozeman13 °C / 2 °CCloudyGlacier National Park12 °C / 3 °CCloudyBillings18 °C / 4 °CCloudyMissoula14 °C / 3 °CCloudyHelena11 °C / 0 °CCloudyGreat Falls13 °C / 2 °CCloudyButte9 °C / 0 °CMore 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 Sunny
Sunny
 20° /4° 0 mm 0 cm
Oct. 2 Overcast
Overcast
 20° /8° 0 mm 0 cm
Oct. 3 Sunny
Sunny
 18° /4° 0 mm 0 cm
Oct. 4 Sunny
Sunny
 16° /3° 33.1 mm 0 cm
Oct. 5 Sunny
Sunny
 9° /1° 13.7 mm 7.4 cm
Oct. 6 Sunny
Sunny
 15° /3° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 20° /4° 0 mm 0 cm
Oct. 8 Cloudy
Cloudy
 21° /5° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 24° /7° 0 mm 0 cm
Oct. 10 Patchy rain possible
Patchy rain possible
 20° /7° 0.1 mm 0 cm
Oct. 11 Overcast
Overcast
 19° /6° 2 mm 0 cm
Oct. 12 Overcast
Overcast
 12° /4° 0.9 mm 0 cm
Oct. 13 Sunny
Sunny
 9° /0° 0 mm 0 cm
Oct. 14 Sunny
Sunny
 16° /2° 0 mm 0 cm
Oct. 15 Sunny
Sunny
 14° /4° 5.7 mm 2.3 cm
Oct. 16 Partly cloudy
Partly cloudy
 13° /3° 3.7 mm 0.6 cm
Oct. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /-1° 6.6 mm 0.7 cm
Oct. 18 Patchy moderate snow
Patchy moderate snow
 6° /0° 2.9 mm 1.8 cm
Oct. 19 Cloudy
Cloudy
 12° /0° 7.8 mm 0 cm
Oct. 20 Partly cloudy
Partly cloudy
 12° /2° 0 mm 0 cm
Oct. 21 Overcast
Overcast
 15° /2° 0.2 mm 0 cm
Oct. 22 Patchy rain possible
Patchy rain possible
 12° /1° 0.2 mm 0 cm
Oct. 23 Patchy rain possible
Patchy rain possible
 12° /2° 2.2 mm 0 cm
Oct. 24 Patchy rain possible
Patchy rain possible
 12° /1° 5.7 mm 0 cm
Oct. 25 Sunny
Sunny
 13° /1° 0.3 mm 0 cm
Oct. 26 Sunny
Sunny
 10° /1° 0 mm 0 cm
Oct. 27 Overcast
Overcast
 9° /-1° 6.5 mm 4.7 cm
Oct. 28 Overcast
Overcast
 4° /-3° 0.3 mm 0 cm
Oct. 29 Patchy rain possible
Patchy rain possible
 7° /-4° 0.1 mm 0 cm
Oct. 30 Sunny
Sunny
 5° /-5° 0 mm 0 cm
Oct. 31 Overcast
Overcast
 6° /-5° 0 mm 0 cm
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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 2°.

How much rainfall should be expected in Montana during October?

Moderate rainfall is anticipated in Montana during October, with a total of 92 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

Will it snow in Montana in October 2026?

Montana experiences an average snowfall of 17.555 cm during October, occurring over 6 days.

What are the typical wind conditions in Montana during October?

The average wind speed in Montana during October is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

Montana snow forecast October 2026

Track daily snowfall levels and discover Montana’s snowy potential this October ❄️
On average, Montana sees 6 snowy days during October, with approximately 17.6 cm of total snowfall.

October rainfall patterns in Montana

Explore the daily rainfall trends and prepare for Montanas October weather 💧
Typically, Montana has 6 rainy days in October with a total of 92 mm of rainfall.

UV exposure in Montana during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Counties in Montana
Select a county for an accurate weather forecast
Cascade CountyFlathead CountyGallatin CountyLewis and Clark CountyMissoula CountySilver Bow CountyYellowstone County
Top locations in Montana
Select a location for an accurate weather forecast
BillingsBozemanButteGlacier National ParkGreat FallsHelenaMissoula
More Locations

Quick links

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Location coordinates Where is Montana?

Get accurate weather forecasts for Montana, located at latitude 45.68 and longitude -111.039. Stay updated with localized weather information tailored for Montana.

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