WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Sunday, 07-Dec-2025 08:53 pm
 
Tonight

Mostly Cloudy
Cold!
Mostly Cloudy
Cold!
Monday

Mostly Cloudy
Mostly Cloudy
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Mostly Cloudy
Cold!
Mostly Cloudy
Cold!
Tuesday
night
Mostly Cloudy
Mostly Cloudy
Wednesday

Cloudy
Cold!
Cloudy
Cold!
Wednesday
night
Rain and Snow
Cold!
Rain and Snow
Cold!
Thursday

Partly Cloudy
Cold!
Partly Cloudy
Cold!
<.1 in.
Low: 28° High: 31° Low: 15° High: 34° Low: 28° High: 39° Low: 28° High: 37°
WCh: 22°     WCh: 16°   WCh: 22° WCh: 20° WCh: 18°
WSW→NNW
3→6-16
mph
Moderate breeze
NNE
9-17
mph
Moderate breeze
NNE
5→calm
mph
Light breeze
SSE
calm→11-23
mph
Fresh breeze
S
10-20→7
mph
Fresh breeze
SSW
7→13-19
mph
Fresh breeze
SSW→W
11-18→14-21
mph
Fresh breeze
W
12-21
mph
Fresh breeze

 

Tonight
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 28°. Wind chill ranging from 22 to 34. Wind west-southwest around 3 mph in the evening, becoming north-northwest around 6 mph, gusting to 16 mph, after midnight.
Monday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. High 31°. Wind chill around 21. Wind north-northeast around 9 mph, gusting to 17 mph.
Monday night
 
Mostly cloudy in the evening, becoming fair after midnight. Low 15°. Wind north-northeast around 5 mph in the evening, becoming near calm after midnight.
Tuesday
 
Mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 34°. Wind chill ranging from 16 to 25. Wind south-southeast near calm in the morning, becoming 11 mph, gusting to 23 mph, in the afternoon.
Tuesday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Low 28°. Wind chill as low as 22. Wind south around 10 mph, gusting to 20 mph, in the evening, becoming 7 mph after midnight.
Wednesday
 
Cloudy. High 39°. Wind chill ranging from 22 to 30. Wind south-southwest around 7 mph in the morning, becoming 13 mph, gusting to 19 mph, in the afternoon.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming fair after midnight. A slight chance of a mix of rain and snow in the evening, then a slight chance of a mix of snow and rain after midnight. Breezy. Low 28°. Wind chill ranging from 20 to 30. Wind south-southwest around 11 mph, gusting to 18 mph, in the evening, becoming west around 14 mph, gusting to 21 mph, after midnight. Chance of precipitation 20 percent. Precipitation (liquid equivalent) mostly less than a tenth of an inch. No snow accumulation expected.
Thursday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Breezy. High 37°. Wind chill ranging from 18 to 29. Wind west around 12 mph, gusting to 21 mph.
Thursday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of snow after midnight. Low 27°. Wind west around 5 mph, gusting to 15 mph, in the evening, becoming 2 mph after midnight. Chance of precipitation 30 percent. Precipitation (liquid equivalent) mostly less than a tenth of an inch. Snow accumulation about a quarter inch.

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