Flathead County (Glacier National Park)
October
Weather in Flathead County, Montana for October 2025
Your guide to Flathead County weather in October - trends and predictions
In general, the average temperature in Flathead County at the beginning of October is 16.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.1 °F by the end of October.
Flathead County experiences moderate rainfall in October, with an average of 10 rainy days and a total precipitation of 77.8 mm.
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Temperatures
Rain 🌧️
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21
Dry days
10
Rainy days
0
Snow days
13°/3°
Temperatures
10 km/h
Avg max wind
62 %
Avg humidity
Flathead County Weather October
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Temperatures trend during October in Flathead County
See the weather trend as well as the moving average line
October weather in Flathead County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Overcast | 18° /2° | 0 mm | 4 | |
| Oct. 2 |  Sunny | 14° /7° | 0 mm | 4 | |
| Oct. 3 | Sunny | 15° /1° | 0 mm | 5 | |
| Oct. 4 |  Moderate or heavy rain shower | 19° /4° | 2.5 mm | 4 | |
| Oct. 5 | Overcast | 13° /5° | 1 mm | 3 | |
| Oct. 6 |  Partly cloudy | 18° /3° | 0 mm | 5 | |
| Oct. 7 | Sunny | 20° /6° | 0 mm | 6 | |
| Oct. 8 | Sunny | 22° /6° | 0 mm | 6 | |
| Oct. 9 | Overcast | 19° /8° | 0 mm | 4 | |
| Oct. 10 | Partly cloudy | 15° /6° | 0 mm | 5 | |
| Oct. 11 |  Cloudy | 17° /4° | 0 mm | 4 | |
| Oct. 12 | Sunny | 20° /4° | 0 mm | 6 | |
| Oct. 13 | Sunny | 19° /5° | 0 mm | 5 | |
| Oct. 14 | Partly cloudy | 20° /6° | 0 mm | 6 | |
| Oct. 15 | Overcast | 18° /7° | 0 mm | 4 | |
| Oct. 16 |  Heavy rain at times | 11° /7° | 3.7 mm | 3 | |
| Oct. 17 | Moderate or heavy rain shower | 7° /1° | 9.2 mm | 2 | |
| Oct. 18 | Partly cloudy | 9° /-1° | 0.3 mm | 3 | |
| Oct. 19 | Overcast | 11° /5° | 0 mm | 3 | |
| Oct. 20 | Overcast | 17° /5° | 0 mm | 4 | |
| Oct. 21 | Moderate or heavy rain shower | 11° /5° | 17.4 mm | 3 | |
| Oct. 22 |  Patchy rain possible | 8° /2° | 4.7 mm | 2 | |
| Oct. 23 | Overcast | 8° /-2° | 0 mm | 2 | |
| Oct. 24 | Patchy rain possible | 5° /0° | 0.3 mm | 2 | |
| Oct. 25 | Partly cloudy | 8° /-3° | 0 mm | 3 | |
| Oct. 26 | Partly cloudy | 13° /-1° | 0 mm | 4 | |
| Oct. 27 | Moderate rain at times | 12° /2° | 14.4 mm | 3 | |
| Oct. 28 | Moderate or heavy rain shower | 5° /1° | 24.3 mm | 2 | |
| Oct. 29 | Overcast | 5° /0° | 0 mm | 2 | |
| Oct. 30 |  Mist | 0° /-3° | 0 mm | 1 | |
| Oct. 31 | Overcast | 7° /-3° | 0 mm | 2 | |
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Important Notice
Our weather forecast for Flathead 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 Flathead County forecast closer to your planned date for the most up-to-date weather information.
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Flathead County in October - FAQ
What are the expected maximum and minimum temperatures in Flathead County during October?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 3°.
How much rainfall should be expected in Flathead County during October?
Moderate rainfall is anticipated in Flathead County during October, with a total of 77.8 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Flathead County during October?
The average wind speed in Flathead County during October is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Flathead County
Explore the daily rainfall trends and prepare for Flathead Countys October weather 💧
UV exposure in Flathead County during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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