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Sunset:  5:06 pm
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January 18th, 2026 :: 8:45 pm MST   

Local Weather Report for
Harlowton
Montana, United States

 Harlowton Weather Forecast Summary  
 
Today
Jan 18th
Monday
Jan 19th
Tuesday
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Cloudy Cloudy Cloudy Cloudy Cloudy
34°F
40°F
23°F
34°F
24°F
28°F
20°F
41°F
21°F
 
 Harlowton Detailed Weather Forecast  
 
Sunday, January 18th, 2026
Evening Temperature: 24°F
Clear.
Monday, January 19th, 2026
Overnight Temperature: 24°F
Mostly clear. Windy at times.
Morning Temperature: 38°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 30°F
Cloudy.
Evening Temperature: 29°F
A mix of cloudy and clear skies. Windy at times.
Tuesday, January 20th, 2026
Overnight Temperature: 33°F
Cloudy. Wind 35 to 45 mph.
Morning Temperature: 31°F
Cloudy with a slight chance of flurries or showers. Wind 20 to 30 mph.
Afternoon Temperature: 28°F
Sunny.
Evening Temperature: 26°F
Clear. Wind 20 to 30 mph.
Wednesday, January 21st, 2026
Overnight Temperature: 22°F
A mix of cloudy and clear skies with a slight chance of flurries. Windy.
Morning Temperature: 26°F
Cloudy. Windy.
Afternoon Temperature: 23°F
Cloudy.
Evening Temperature: 22°F
Cloudy.
Thursday, January 22nd, 2026
Overnight Temperature: 21°F
Cloudy.
Morning Temperature: 38°F
Cloudy. Windy at times.
Afternoon Temperature: 28°F
Cloudy.
Evening Temperature: 23°F
Cloudy with a chance of flurries.
Friday, January 23rd, 2026
Overnight Temperature: 17°F
Cloudy with flurries likely.
Morning Temperature: 12°F
Cloudy with flurries likely.
Afternoon Temperature: 5°F
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -1°F
Cloudy with a chance of flurries. Windy at times.
Saturday, January 24th, 2026
Overnight Temperature: -6°F
Cloudy with a chance of flurries.
Morning Temperature: -5°F
Cloudy with a chance of flurries.
Afternoon Temperature: -8°F
Cloudy. Windy at times.
Evening Temperature: -8°F
Cloudy with a chance of flurries. Windy at times.
Sunday, January 25th, 2026
Overnight Temperature: -5°F
Cloudy with a slight chance of flurries.
Morning Temperature: 10°F
Cloudy.
Afternoon Temperature: 22°F
Cloudy.
Evening Temperature: 35°F
Cloudy. Wind 20 to 30 mph.
Monday, January 26th, 2026
Overnight Temperature: 31°F
Cloudy. Windy at times.
Morning Temperature: 37°F
Cloudy. Windy.
Afternoon Temperature: 29°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 20°F
Clear with cloudy periods.





 

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East Helena, MT 
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Great Falls, MT 
7:53 PM  27°F
Overcast

 
This WeatherCity Weather Forecast for Harlowton, Montana, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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