WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Monday, 13-Jul-2026 08:53 pm
 
Tonight

Mostly Clear
Mostly Clear
Tuesday

Sunny
Sunny
Tuesday
night
Clear
Clear
Wednesday

Mostly Sunny
Mostly Sunny
Wednesday
night
Mostly Cloudy
Mostly Cloudy
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Mostly Cloudy
Mostly Cloudy
Friday

Mostly Cloudy
Mostly Cloudy
Low: 67° High: 90° Low: 68° High: 94° Low: 69° High: 89° Low: 68° High: 90°
               
S
4
mph
Light breeze
SW
4
mph
Light breeze
SW
5
mph
Light breeze
W
8-18
mph
Moderate breeze
WNW
6-15→3
mph
Moderate breeze
NW
5
mph
Light breeze
NW→N
4
mph
Light breeze
NW
3
mph
Light air
UV: 9
 Very High 
UV: 9
 Very High 
UV: 6
 High 
UV: 6
 High 

 

Tonight
 
Clear in the evening, becoming mostly clear after midnight. Low 67°. Wind south around 4 mph.
Tuesday
 
Sunny. Hot. High 90°. UV index up to 9. Wind southwest around 4 mph.
Tuesday night
 
Clear. Low 68°. Wind southwest around 5 mph.
Wednesday
 
Partly to mostly sunny in the morning, becoming mostly sunny in the afternoon. Hot. High 94°. UV index up to 9. Wind west around 8 mph, gusting to 18 mph.
Wednesday night
 
Mostly cloudy in the evening, becoming mostly clear after midnight. Low 69°. Wind west-northwest around 6 mph, gusting to 15 mph, in the evening, becoming 3 mph after midnight.
Thursday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Hot. High 89°. UV index up to 6. Wind northwest around 5 mph.
Thursday night
 
Fair in the evening, becoming partly to mostly cloudy after midnight. Low 68°. Wind northwest around 4 mph in the evening, becoming north after midnight.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Hot. High 90°. UV index up to 6. Wind northwest around 3 mph.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. A slight chance of rain after midnight. Precipitation showery or intermittent. Low 67°. Wind southeast around 3 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.

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