WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Tuesday, 17-Feb-2026 09:53 pm
 
Tonight

Mostly Cloudy
Mostly Cloudy
Wednesday

Cloudy
Cloudy
Wednesday
night
Mostly Cloudy
Mostly Cloudy
Thursday

Chance rain
Chance rain
Thursday
night
Rain likely
Rain likely
Friday

Rain likely
Rain likely
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Mostly Cloudy
Mostly Cloudy
<.1 in. <.25 in. 1.0 in. .35 in.
Low: 40° High: 56° Low: 42° High: 53° Low: 38° High: 53° Low: 35° High: 51°
               
SSE
3
mph
Light air
S
3
mph
Light air
WSW
4
mph
Light breeze
E
2→8-18
mph
Moderate breeze
E
7
mph
Light breeze
E→SSW
4
mph
Light breeze
W
6
mph
Light breeze
W
6-17→9-18
mph
Moderate breeze
UV: 3
 Medium 

 

Tonight
 
Mostly cloudy in the evening, becoming cloudy after midnight. Low 40°. Wind south-southeast around 3 mph.
Wednesday
 
Cloudy in the morning, becoming dense overcast in the afternoon. A chance of rain. Relatively mild. High 56°. Wind south around 3 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. Relatively mild. Low 42°. Wind west-southwest around 4 mph.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming dense overcast in the afternoon. A chance of rain in the afternoon. Relatively mild. High 53°. Wind east around 2 mph in the morning, becoming 8 mph, gusting to 18 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Thursday night
 
Dense overcast. Patchy light fog. Rain likely. Low 38°. Wind east around 7 mph. Chance of precipitation 80 percent. Precipitation mostly around an inch.
Friday
 
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. Rain likely. Relatively mild. High 53°. Wind east around 4 mph in the morning, becoming south-southwest in the afternoon. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Friday night
 
Mostly clear in the evening, becoming fair to partly cloudy after midnight. Low 35°. Wind west around 6 mph.
Saturday
 
Mostly cloudy to cloudy in the morning, becoming mostly sunny in the afternoon. High 51°. UV index up to 3. Wind west around 6 mph, gusting to 17 mph, in the morning, becoming 9 mph, gusting to 18 mph, in the afternoon.
Saturday night
 
Fair in the evening, becoming mostly cloudy to cloudy after midnight. Low 33°. Wind north-northwest around 3 mph in the evening, becoming northeast after midnight.

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