easeweather.com

Weather in Yellowstone County, Montana for October 2025

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

    Official Weather Alert ⚠️

  • Wind Advisory - See hour by hour.

  • Snow Forecast ❄️

  • Snowfall in Yellowstone County during October is quite rare, with fewer than 2 snowy days on average.
    According to Yellowstone County snow forecast for October 2025, 1 snowy day is expected until the end of the month at Friday, October 31.

  • Temperatures

  • Until now, October 2025 in Yellowstone County is cooler than usual, with temperatures averaging 17 °F, this is -3.6 °F below the typical seasonal average.

  • The forecast for the next days in Yellowstone County predicts a temperature of 13.3 °F, which is cooler than the historical average.

  • In general, the average temperature in Yellowstone County at the beginning of October is 21.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.9 °F by the end of October.

  • Rain 🌧️

  • With an average of 4 rainy days, Yellowstone County experiences minimal rainfall in October.

  • More

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

Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/5°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
47 %
Avg humidity

Yellowstone County Weather October

Move between months or click on a day

Temperatures trend during October in Yellowstone County

See the weather trend as well as the moving average line

October weather in Yellowstone County day by day

Click on a date for more information
Date Weather Temperatures Rain Snow More
Oct. 1 Cloudy
Cloudy
24° /6° 0 mm 0 cm
Oct. 2 Cloudy
Cloudy
27° /10° 0 mm 0 cm
Oct. 3 Sunny
Sunny
21° /7° 0 mm 0 cm
Oct. 4 Sunny
Sunny
22° /5° 52.8 mm 0 cm
Oct. 5 Sunny
Sunny
15° /7° 4.8 mm 0 cm
Oct. 6 Sunny
Sunny
20° /4° 0 mm 0 cm
Oct. 7 Sunny
Sunny
24° /5° 0 mm 0 cm
Oct. 8 Sunny
Sunny
25° /5° 0 mm 0 cm
Oct. 9 Sunny
Sunny
26° /6° 0 mm 0 cm
Oct. 10 Overcast
Overcast
21° /7° 1.5 mm 0 cm
Oct. 11 Overcast
Overcast
23° /8° 0 mm 0 cm
Oct. 12 Cloudy
Cloudy
16° /6° 22.2 mm 0 cm
Oct. 13 Sunny
Sunny
12° /2° 0 mm 0 cm
Oct. 14 Sunny
Sunny
18° /2° 0 mm 0 cm
Oct. 15 Sunny
Sunny
16° /4° 2.3 mm 0 cm
Oct. 16 Sunny
Sunny
19° /6° 0 mm 0 cm
Oct. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
15° /4° 8.8 mm 0 cm
Oct. 18 Sunny
Sunny
16° /3° 0 mm 0 cm
Oct. 19 Overcast
Overcast
19° /4° 0 mm 0 cm
Oct. 20 Partly cloudy
Partly cloudy
13° /1° 0 mm 0 cm
Oct. 21 Sunny
Sunny
15° /1° 0 mm 0 cm
Oct. 22 Sunny
Sunny
15° /4° 0 mm 0 cm
Oct. 23 Partly cloudy
Partly cloudy
18° /7° 0 mm 0 cm
Oct. 24 Sunny
Sunny
21° /8° 0 mm 0 cm
Oct. 25 Overcast
Overcast
17° /9° 0 mm 0 cm
Oct. 26 Patchy rain possible
Patchy rain possible
12° /4° 0.5 mm 0 cm
Oct. 27 Overcast
Overcast
9° /5° 0 mm 0 cm
Oct. 28 Partly cloudy
Partly cloudy
10° /2° 0 mm 0 cm
Oct. 29 Partly cloudy
Partly cloudy
11° /1° 0 mm 0 cm
Oct. 30 Patchy rain possible
Patchy rain possible
9° /4° 0.2 mm 0 cm
Oct. 31 Light snow
Light snow
1° /-1° 0.2 mm 0.1 cm
Next
Important Notice
Our weather forecast for Yellowstone 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 Yellowstone County forecast closer to your planned date for the most up-to-date weather information.

Yellowstone County in October - FAQ

What are the expected maximum and minimum temperatures in Yellowstone County during October?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Yellowstone County during October?
In October, Yellowstone County can expect light to moderate rainfall, totaling 29.9 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Yellowstone County during October?
The average wind speed in Yellowstone County during October is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Yellowstone County snow forecast October 2025

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

October rainfall patterns in Yellowstone County

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

UV exposure in Yellowstone County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Top locations in Yellowstone County
Select a location for an accurate weather forecast
More Locations

Quick links

More Yellowstone County weather pages
Location coordinates Where is Yellowstone County?

Get accurate weather forecasts for Yellowstone County, located at latitude 45.783 and longitude -108.501. Stay updated with localized weather information tailored for Yellowstone County.

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