Weather forecast for 10 daysOlney, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 59°F
- 34°F
Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 4mphE 93°
- Humidity: 61%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:43 pm MDT
- details ▼
Today, on Sunday, October 18, the weather remains calm, bright, and sunny.
Forecasted temperature values will span from a refreshing 59°F down to a cold 33.8°F.
The expected high of 59°F appears seasonally off, better matching September's typical values.
Sunrise will be at 8:03 am and sunset at 6:43 pm; the daylight will last for 10h and 40min.
Forecasted temperature values will span from a refreshing 59°F down to a cold 33.8°F.
The expected high of 59°F appears seasonally off, better matching September's typical values.
Sunrise will be at 8:03 am and sunset at 6:43 pm; the daylight will last for 10h and 40min.
10-day overview
Daily temperatures
Warmest period: Tuesday - Thursday 63°C.
Coldest day: Sunday 25.10. 41°C.
Coldest day: Sunday 25.10. 41°C.
Chance of precipitation
Highest chance: Friday 46%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 59°F
- 34°F
Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 4mphE 93°
- Humidity: 61%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:43 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 61°F
- 37°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphE 91°
- Humidity: 57%
- UV index: 2
- Sunrise: 8:04 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 63°F
- 37°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNNW 340°
- Humidity: 57%
- UV index: 2
- Sunrise: 8:06 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 63°F
- 41°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphESE 103°
- Humidity: 56%
- UV index: 2
- Sunrise: 8:07 am MDT
- Sunset: 6:37 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 39°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 4mphESE 106°
- Humidity: 59%
- UV index: 2
- Sunrise: 8:09 am MDT
- Sunset: 6:35 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 48°F
- 28°F
Showers
- Precip. probability: 46%
- Precipitation: 0.12"
- Wind: 7mphWNW 282°
- Humidity: 84%
- UV index: 1
- Sunrise: 8:11 am MDT
- Sunset: 6:34 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 45°F
- 25°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0.08"
- Wind: 6mphS 184°
- Humidity: 71%
- UV index: 2
- Sunrise: 8:12 am MDT
- Sunset: 6:32 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 41°F
- 25°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphENE 68°
- Humidity: 73%
- UV index: 2
- Sunrise: 8:14 am MDT
- Sunset: 6:30 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 45°F
- 27°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphENE 74°
- Humidity: 69%
- UV index: 2
- Sunrise: 8:15 am MDT
- Sunset: 6:28 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 45°F
- 27°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphE 96°
- Humidity: 77%
- UV index: 2
- Sunrise: 8:17 am MDT
- Sunset: 6:27 pm MDT
- details ▼
Primarily cloudy and occasionally clear and rainy weather is predicted.
With a probability of 46%, rainfall is forecasted only for Friday. Anticipated precipitation will be minimal at 0.12".
Expect a substantial fluctuation in daytime highs throughout the forecast window. The temperature is expected to swing from 41°F up to 62.6°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 24.8°F and 41°F.
The warmest days will be Tuesday through Thursday, with a maximum of 62.6°F; the coldest day will be next Sunday, with a maximum of 41°F.
With a probability of 46%, rainfall is forecasted only for Friday. Anticipated precipitation will be minimal at 0.12".
Expect a substantial fluctuation in daytime highs throughout the forecast window. The temperature is expected to swing from 41°F up to 62.6°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 24.8°F and 41°F.
The warmest days will be Tuesday through Thursday, with a maximum of 62.6°F; the coldest day will be next Sunday, with a maximum of 41°F.
Updated: Oct 18, 2026 @ 07:04:48 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, a sun-drenched sky is anticipated.
Today, the highest temperature will be 59°F, while the lowest temperature will be 33.8°F.
Today, the maximum temperature will be uncommonly higher than the average highest temperature of 48.7°F in October. The lowest temperature today will be in line with the average low temperature.
Today, the maximum temperature will be uncommonly higher than the average highest temperature of 48.7°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Olney, sunrise will be at 8:03 am and sunset at 6:43 pm (MDT).
In Olney, today, there will be 10h and 40min of daylight.
