Ammenheuser Weather - WXSIM Forecast

59°F

Thurmont, Maryland USA

Updated: 22-Sep-2026 1:55am

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WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather

Updated: Monday, 21-Sep-2026 09:12 pm

Tonight Chance rain	Tuesday Rain likely	Tuesday night Rain likely	Wednesday Chance rain	Wednesday night Mostly Cloudy	Thursday Mostly Cloudy	Thursday night Clear	Friday Fog a.m.
<.25 in.	.35 in.	<.25 in.	<.1 in.
Low: 55°	High: 57°	Low: 52°	High: 60°	Low: 50°	High: 64°	Low: 45°	High: 65°

NE 6 mph Light breeze	NE 9-16 mph Moderate breeze	NE 9-16 mph Moderate breeze	NE 10-20 mph Fresh breeze	NE 8-17 mph Moderate breeze	NE 10-19 mph Fresh breeze	NNE 5-16 mph Moderate breeze	N 7-18→11-20 mph Fresh breeze
			UV: 2 Low		UV: 5 Medium		UV: 5 Medium

Tonight	Dense overcast. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 55°. Wind northeast around 6 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Tuesday	Dense overcast. Rain likely. Cool. High 57°. Wind northeast around 9 mph, gusting to 16 mph. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Tuesday night	Dense overcast. Rain likely. Low 52°. Wind northeast around 9 mph, gusting to 16 mph. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Wednesday	Dense overcast. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 60°. UV index up to 2. Wind northeast around 10 mph, gusting to 20 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Wednesday night	Mostly cloudy. Low 50°. Wind northeast around 8 mph, gusting to 17 mph.
Thursday	Partly to mostly cloudy in the morning, becoming mostly sunny in the afternoon. High 64°. UV index up to 5. Wind northeast around 10 mph, gusting to 19 mph.
Thursday night	Clear. Cool. Low 45°. Wind north-northeast around 5 mph, gusting to 16 mph.
Friday	Sunny. Patchy light fog in the morning. High 65°. UV index up to 5. Wind north around 7 mph, gusting to 18 mph, in the morning, becoming 11 mph, gusting to 20 mph, in the afternoon.
Friday night	Clear. Cool. Low 45°. Wind north-northwest around 5 mph, gusting to 15 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.
Animated forecast icons courtesy of www.meteotreviglio.com.