Weather forecast for tomorrowOlney, MT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 59°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 4mphE 95°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 8:03 am MDT
  • Sunset: 6:43 pm MDT
  • ▼
On Sunday, October 18, sunny skies are in store, with excellent visibility.
The temperature scale will run from a maximum of a moderate 59°F to a minimum of a cold 33.8°F.
Tomorrow, the temperature will be higher and more consistent with September's typical high of 65.3°F than with October's 48.7°F.
Sunrise will be at 8:03 am and sunset at 6:43 pm; tomorrow's daylight will last for 10h and 40min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 57°C.
Coldest hour: 6 am 34°C.

Chance of precipitation

Highest chance: 9 am 13%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNW 313°
  • Humidity: 69%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    39°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphNW 304°
  • Humidity: 88%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 36°F
  • Feels like:
    36°F
Mostly Clear
Mostly Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphN 352°
  • Humidity: 92%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 34°F
  • Feels like:
    34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 1mphNNW 347°
  • Humidity: 93%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 32°F
  • Feels like:
    32°F
Clear
Clear
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 1mphNNW 339°
  • Humidity: 93%
  • Pressure: 30.18"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunrise: 8:03 am
  • 10 am
  • 43°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphNNE 26°
  • Humidity: 79%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 52°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphE 84°
  • Humidity: 59%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 144°
  • Humidity: 44%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 148°
  • Humidity: 38%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 138°
  • Humidity: 42%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:43 pm
  • 8 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphNE 42°
  • Humidity: 62%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 41°F
  • Feels like:
    41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphN 1°
  • Humidity: 68%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of mostly clear and cloudy weather is predicted.
The temperature will vary between the lowest temperature of 32°F and the highest temperature of 57.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature tomorrow will feel more in line with September's average high of 65.3°F than the usual for October. The temperature low is forecasted to be resembling the usual October value of 30.7°F.
Updated: Oct 18, 2026 @ 03:37:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Olney, conditions will remain bright with clear skies.

Tomorrow, the highest temperature will be 59°F, while the lowest temperature will be 33.8°F.
The maximum temperature tomorrow will be uncommonly higher than the average highest temperature of 48.7°F in October. The lowest temperature will be in line with the average low of 30.7°F.

On Sunday, in Olney, sunrise will be at 8:03 am and sunset at 6:43 pm (MDT).

Tomorrow, the daylight will last for 10h and 40min.