WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Sunday, 27-Sep-2026 09:12 pm
 
Tonight

Mostly Cloudy
Mostly Cloudy
Monday

Mostly Cloudy
Mostly Cloudy
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Partly Cloudy
Partly Cloudy
Tuesday
night
Clear
Clear
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Partly Cloudy
Partly Cloudy
Thursday

Partly Cloudy
Partly Cloudy
Low: 56° High: 69° Low: 54° High: 71° Low: 50° High: 77° Low: 58° High: 83°
               
NNW
6
mph
Light breeze
NNW
5
mph
Light breeze
NW
3
mph
Light air
WNW
4-15
mph
Moderate breeze
NNW→SW
calm

Calm
SW
4
mph
Light breeze
SE→SSW
2
mph
Light air
SW
4
mph
Light breeze
UV: 3
 Medium 
UV: 4
 Medium 
UV: 6
 High 
UV: 5
 Medium 

 

Tonight
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Low 56°, but temperatures rising after midnight. Wind north-northwest around 6 mph.
Monday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. High 69°. UV index up to 3. Wind north-northwest around 5 mph.
Monday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. Low 54°. Wind northwest around 3 mph.
Tuesday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. High 71°. UV index up to 4. Wind west-northwest around 4 mph, gusting to 15 mph.
Tuesday night
 
Clear in the evening, becoming fair after midnight. Low 50°. Wind north-northwest near calm in the evening, becoming southwest after midnight.
Wednesday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Warm. High 77°. UV index up to 6. Wind southwest around 4 mph.
Wednesday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 58°. Wind southeast around 2 mph in the evening, becoming south-southwest after midnight.
Thursday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Warm. High 83°. UV index up to 5. Wind southwest around 4 mph.
Thursday night
 
Clear. Low 54°. Wind southwest around 2 mph.

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