WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Sunday, 06-Sep-2026 02:53 pm
 
This
afternoon
Partly Cloudy
Partly Cloudy
Tonight

Clear
Clear
Monday

Sunny
Sunny
Monday
night
Mostly Clear
Mostly Clear
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Mostly Cloudy
Mostly Cloudy
Wednesday

Mostly Cloudy
Mostly Cloudy
Wednesday
night
Partly Cloudy
Partly Cloudy
High: 79° Low: 57° High: 78° Low: 55° High: 80° Low: 62° High: 86° Low: 64°
               
NNE
6-17
mph
Moderate breeze
NNE
3
mph
Light air
NNE
3
mph
Light air
NE
calm

Calm
SW
2
mph
Light air
SE
3
mph
Light air
SSW
7-16
mph
Moderate breeze
SSW
6
mph
Light breeze
UV: 5
 Medium 
UV: 7
 High 
UV: 5
 Medium 
UV: 7
 High 

 

This afternoon
 
Fair to partly cloudy. High 79°. UV index up to 5. Wind north-northeast around 6 mph, gusting to 17 mph.
Tonight
 
Clear. Low 57°. Wind north-northeast around 3 mph.
Monday
 
Sunny. High 78°. UV index up to 7. Wind north-northeast around 3 mph.
Monday night
 
Clear in the evening, becoming mostly clear after midnight. Low 55°. Wind northeast near calm.
Tuesday
 
Mostly sunny in the morning, becoming mostly cloudy in the afternoon. High 80°. UV index up to 5. Wind southwest around 2 mph.
Tuesday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 62°. Wind southeast around 3 mph.
Wednesday
 
Partly to mostly cloudy in the morning, becoming mostly sunny in the afternoon. Hot. High 86°. UV index up to 7. Wind south-southwest around 7 mph, gusting to 16 mph.
Wednesday night
 
Clear in the evening, becoming partly cloudy after midnight. Low 64°. Wind south-southwest around 6 mph.
Thursday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain. Precipitation showery or intermittent. Warm. High 83°. UV index up to 5. Wind west-southwest around 6 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Thursday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog in the evening, then moderate fog after midnight. A chance of rain. Low 66°. Wind west-southwest around 4 mph in the evening, becoming northwest after midnight. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.

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