Weather forecast for tomorrowGreenough, MT

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 64°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphNE 45°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:57 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
On Monday, in Greenough, expect partly sunny skies with periods of cloudiness.
Temperature values will vary noticeably, extending from a breezy 64.4°F to an icy 33.8°F.
A high of 64.4°F is expected, which resembles September's climate average of 67.1°F more than October's 49.8°F.
Sunrise will be at 7:57 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 41min.

Hourly overview

Hourly temperatures

Warmest hour: 6 pm 63°C.
Coldest period: 6 am - 9 am 34°C.

Chance of precipitation

Highest chance: 12 am - 9 am 4%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    41°F
Mostly Clear
Mostly Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphENE 71°
  • Humidity: 77%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 37°F
  • Feels like:
    37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphSE 126°
  • Humidity: 83%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 36°F
  • Feels like:
    36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphESE 107°
  • Humidity: 88%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 34°F
  • Feels like:
    34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphSE 129°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:57 am
  • 8 am
  • 32°F
  • Feels like:
    32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphESE 123°
  • Humidity: 94%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 37°F
  • Feels like:
    37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 98°
  • Humidity: 88%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNE 36°
  • Humidity: 61%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 49%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 17°
  • Humidity: 36%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphWNW 286°
  • Humidity: 39%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:39 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphNW 318°
  • Humidity: 52%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNNW 329°
  • Humidity: 59%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of cloudy and mostly clear weather is anticipated.
The temperature will be between the lowest temperature of 32°F and the highest temperature of 64.4°F. The warmest part of the day is expected around 5 pm.
The maximum temperature will align more closely with September's average high of 67.1°F than with October's 49.8°F. The minimum temperature will be moderately higher than October's average low of 29.5°F.
Updated: Oct 18, 2026 @ 10:11:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, partly cloudy skies will persist, making for a mix of sun and clouds.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 33.8°F.
The maximum temperature will be noticeably higher than the average highest temperature of 49.8°F in October. The lowest temperature will be slightly warmer than the average low of 29.5°F.

On Monday, in Greenough, sunrise will be at 7:57 am and sunset at 6:39 pm (MDT).

In Greenough, tomorrow, there will be 10h and 41min of daylight.