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May 18th, 2026 :: 1:20 am MDT   

Local Weather Report for
Dillon
Montana, United States

 Dillon Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mix of Cloud and Sun Mostly Sunny Mostly Sunny Mix of Cloud and Sun Mix of Sun and Cloud
46°F
53°F
28°F
57°F
34°F
54°F
33°F
61°F
37°F
 
 Dillon Detailed Weather Forecast  
 
Monday, May 18th, 2026
Overnight Temperature: 25°F
Cloudy with clear periods.
Morning Temperature: 26°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 43°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 40°F
A mix of cloudy and clear skies.
Tuesday, May 19th, 2026
Overnight Temperature: 31°F
Clear.
Morning Temperature: 35°F
Mostly sunny.
Afternoon Temperature: 50°F
A mix of cloud and sun.
Evening Temperature: 48°F
A mix of cloudy and clear skies.
Wednesday, May 20th, 2026
Overnight Temperature: 38°F
Mostly clear.
Morning Temperature: 40°F
Mostly sunny.
Afternoon Temperature: 55°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 50°F
Mostly clear. Windy.
Thursday, May 21st, 2026
Overnight Temperature: 34°F
Mostly clear.
Morning Temperature: 39°F
A mix of cloud and sun.
Afternoon Temperature: 53°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 47°F
A mix of cloudy and clear skies.
Friday, May 22nd, 2026
Overnight Temperature: 39°F
A mix of cloudy and clear skies with a slight chance of showers. Showers possibly mixed with wet flurries.
Morning Temperature: 41°F
A mix of cloud and sun.
Afternoon Temperature: 57°F
Sunny. Windy at times.
Evening Temperature: 55°F
A mix of cloudy and clear skies. Windy at times.
Saturday, May 23rd, 2026
Overnight Temperature: 45°F
Clear with cloudy periods.
Morning Temperature: 47°F
Sunny.
Afternoon Temperature: 65°F
Mostly sunny. Windy.
Evening Temperature: 60°F
A mix of cloudy and clear skies. Windy.
Sunday, May 24th, 2026
Overnight Temperature: 47°F
Clear with cloudy periods.
Morning Temperature: 50°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 63°F
Mostly sunny. Windy.
Evening Temperature: 60°F
Mostly clear. Windy.
Monday, May 25th, 2026
Overnight Temperature: 48°F
Mostly clear.
Morning Temperature: 53°F
Sunny. Windy at times.
Afternoon Temperature: 73°F
Mostly sunny. Wind 20 to 30 mph.
Evening Temperature: 66°F
A mix of clear and cloudy skies. Wind 20 to 30 mph.





 

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This WeatherCity Weather Forecast for Dillon, 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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