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WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Saturday, 18-Oct-2025 08:53 pm
 
Tonight

Partly Cloudy
Partly Cloudy		 Sunday

Mostly Cloudy
Mostly Cloudy		 Sunday
night
Thunder storm
Thunder storm		 Monday

Mostly Cloudy
Mostly Cloudy		 Monday
night
Fog late
Fog late		 Tuesday

Fog a.m.
Fog a.m.		 Tuesday
night
Fog late
Fog late		 Wednesday

Fog a.m.
Fog a.m.
.25 in. <.1 in. <.1 in.
Low: 52° High: 77° Low: 54° High: 61° Low: 43° High: 68° Low: 47° High: 56°
               
SE
5→2
mph
Light breeze		 S
6-23→18-28
mph
Strong breeze		 SSW→W
13-26
mph
Strong breeze		 W
16-27
mph
Strong breeze		 W
4-17
mph
Moderate breeze		 SSW
5-16→8-18
mph
Moderate breeze		 SW
4
mph
Light breeze		 W
10-24→15-24
mph
Fresh breeze
UV: 3
 Medium 		 UV: 3
 Medium 		 UV: 4
 Medium 		 UV: 2
 Low 

 

Tonight
 
 Fair in the evening, becoming partly cloudy after midnight. Low 52°. Wind southeast around 5 mph in the evening, becoming 2 mph after midnight.
Sunday
 
 Mostly cloudy. Breezy and warm. High 77°. UV index up to 3. Wind south around 6 mph, gusting to 23 mph, in the morning, becoming 18 mph, gusting to 28 mph, in the afternoon.
Sunday night
 
 Dense overcast in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. Rain likely. Scattered thundershowers possible. Breezy. Low 54°. Wind south-southwest around 13 mph, gusting to 26 mph, in the evening, becoming west after midnight. Chance of precipitation 70 percent. Precipitation mostly around a quarter of an inch.
Monday
 
 Mostly cloudy in the morning, becoming sunny in the afternoon. A slight chance of rain. Windy. High 61°. UV index up to 3. Wind west around 16 mph, gusting to 27 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.
Monday night
 
 Clear. Patchy light fog after midnight. Low 43°. Wind west around 4 mph, gusting to 17 mph.
Tuesday
 
 Sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 68°. UV index up to 4. Wind south-southwest around 5 mph, gusting to 16 mph, in the morning, becoming 8 mph, gusting to 18 mph, in the afternoon.
Tuesday night
 
 Cloudy in the evening, becoming fair after midnight. Patchy light fog after midnight. A chance of rain. Low 47°. Wind southwest around 4 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Wednesday
 
 Sunny in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. Breezy. High 56°. UV index up to 2. Wind west around 10 mph, gusting to 24 mph, in the morning, becoming 15 mph, gusting to 24 mph, in the afternoon.
Wednesday night
 
 Clear. Low 38°. Wind southwest around 6 mph, gusting to 18 mph.

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