easeweather.com
Great Falls (MT)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Asheville (NC)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Bowling Green (KY)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)
Great Falls (MT)
Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Riverside (CA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Winston-Salem (NC) More Locations
United States weather

Weather in Great Falls, Montana for October 2026

Your guide to Great Falls weather in October - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Great Falls usually enjoys a light touch of snow in October.

    • Temperatures

  • In general, the average temperature in Great Falls at the beginning of October is 16.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.9 °F by the end of October.

    • Rain 🌧️

  • With an average of 3 rainy days, Great Falls experiences minimal rainfall in October.

    • More

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

Average dry days
25
Dry days
Average rainy days
3
Rainy days
Average snowy days
3
Snow days
Average temperatures
13°/2°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Great Falls Weather October

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

Temperatures trend during October in Great Falls

See the weather trend as well as the moving average line

October weather in Great Falls day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Sunny
Sunny
 22° /8° 0 mm 0 cm
Oct. 2 Overcast
Overcast
 22° /7° 0 mm 0 cm
Oct. 3 Heavy rain at times
Heavy rain at times
 12° /8° 26.4 mm 0 cm
Oct. 4 Mist
Mist
 13° /7° 0 mm 0 cm
Oct. 5 Heavy snow
Heavy snow
 7° /-1° 29.8 mm 8 cm
Oct. 6 Overcast
Overcast
 15° /-2° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 22° /1° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 22° /4° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 18° /2° 0 mm 0 cm
Oct. 10 Mist
Mist
 26° /4° 0 mm 0 cm
Oct. 11 Overcast
Overcast
 15° /6° 13.4 mm 0 cm
Oct. 12 Moderate snow
Moderate snow
 8° /0° 15 mm 9.2 cm
Oct. 13 Overcast
Overcast
 1° /-2° 3.8 mm 2.8 cm
Oct. 14 Mist
Mist
 4° /0° 0 mm 0 cm
Oct. 15 Moderate rain
Moderate rain
 5° /1° 33.2 mm 0 cm
Oct. 16 Fog
Fog
 10° /0° 0 mm 0 cm
Oct. 17 Overcast
Overcast
 12° /1° 0 mm 0 cm
Oct. 18 Overcast
Overcast
 11° /-1° 0 mm 0 cm
Oct. 19 Overcast
Overcast
 12° /5° 0 mm 0 cm
Oct. 20 Thundery outbreaks possible
Thundery outbreaks possible
 10° /3° 0 mm 0 cm
Oct. 21 Partly cloudy
Partly cloudy
 15° /2° 0 mm 0 cm
Oct. 22 Sunny
Sunny
 18° /-1° 0 mm 0 cm
Oct. 23 Sunny
Sunny
 16° /1° 0 mm 0 cm
Oct. 24 Cloudy
Cloudy
 18° /4° 0 mm 0 cm
Oct. 25 Overcast
Overcast
 15° /5° 0 mm 0 cm
Oct. 26 Cloudy
Cloudy
 10° /1° 0 mm 0 cm
Oct. 27 Overcast
Overcast
 7° /-2° 0 mm 0 cm
Oct. 28 Sunny
Sunny
 8° /-4° 0 mm 0 cm
Oct. 29 Overcast
Overcast
 14° /-2° 0 mm 0 cm
Oct. 30 Sunny
Sunny
 8° /-3° 0 mm 0 cm
Oct. 31 Sunny
Sunny
 14° /-4° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Great Falls 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 Great Falls forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Great Falls in October - FAQ

What are the expected maximum and minimum temperatures in Great Falls during October?

Prepare for cooler days with highs just around 13° and colder nights, dipping below 2°.

How much rainfall should be expected in Great Falls during October?

Significant rainfall exceeding 121.6 mm is expected in Great Falls during October, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Great Falls in October 2026?

Great Falls experiences an average snowfall of 20 cm during October, occurring over 3 days.

What are the typical wind conditions in Great Falls during October?

The average wind speed in Great Falls during October is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

Great Falls snow forecast October 2026

Track daily snowfall levels and discover Great Falls’s snowy potential this October ❄️
On average, Great Falls sees 3 snowy days during October, with approximately 20 cm of total snowfall.

October rainfall patterns in Great Falls

Explore the daily rainfall trends and prepare for Great Fallss October weather 💧
Typically, Great Falls has 3 rainy days in October with a total of 121.6 mm of rainfall.

UV exposure in Great Falls during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

Quick links

More Great Falls weather pages
You are here
Location coordinates Where is Great Falls?

Get accurate weather forecasts for Great Falls, located at latitude 47.5 and longitude -111.301. Stay updated with localized weather information tailored for Great Falls.

Found a mistake?
We appreciate your attention to details. Tell us here.