WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Sunday, 17-Aug-2025 02:53 am
 
Rest of
tonight
Clear
Cold!
Clear
Cold!
Sunday

Sunny
Cold!
Sunny
Cold!
Sunday
night
Fog late
Fog late
Monday

Fog a.m.
Fog a.m.
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.
Low: 25° High: 42° Low: 38° High: 55° Low: 49° High: 64° Low: 56° High: 65°
WCh: 15° WCh: 14°            
Areas of light frost              
SSE
11-27
mph
Strong breeze
SSE
13-25
mph
Strong breeze
SSE
11-25
mph
Strong breeze
SSE
13-25
mph
Strong breeze
SSE
11-24
mph
Fresh breeze
SSE
13-25
mph
Strong breeze
SSE
11-24
mph
Fresh breeze
SSE
13-25
mph
Strong breeze
UV: 8
 Very High 
UV: 8
 Very High 
UV: 8
 Very High 
UV: 8
 Very High 

 

Rest of tonight
 
Clear, with areas of light frost likely. Near record cold. Low 25°. Wind chill ranging from 15 to 24. Wind south-southeast around 11 mph, gusting to 27 mph.
Sunday
 
Sunny. Breezy with near record cool temperatures. High 42°. Wind chill ranging from 14 to 35. UV index up to 8. Wind south-southeast around 13 mph, gusting to 25 mph.
Sunday night
 
Clear. Patchy light fog after midnight. Breezy with near record cold. Low 38°. Wind chill as low as 31. Wind south-southeast around 11 mph, gusting to 25 mph.
Monday
 
Sunny. Patchy light fog in the morning. Breezy and unusually cool. High 55°. UV index up to 8. Wind south-southeast around 13 mph, gusting to 25 mph.
Monday night
 
Clear. Patchy light fog after midnight. Breezy and unusually cool. Low 49°. Wind south-southeast around 11 mph, gusting to 24 mph.
Tuesday
 
Sunny. Patchy light fog in the morning. Breezy and cool. High 64°. UV index up to 8. Wind south-southeast around 13 mph, gusting to 25 mph.
Tuesday night
 
Clear. Patchy light fog after midnight. Breezy and relatively cool. Low 56°. Wind south-southeast around 11 mph, gusting to 24 mph.
Wednesday
 
Sunny. Patchy light fog in the morning. Breezy and cool. High 65°. UV index up to 8. Wind south-southeast around 13 mph, gusting to 25 mph.
Wednesday night
 
Clear. Patchy light fog after midnight. Breezy and relatively cool. Low 56°. Wind south-southeast around 11 mph, gusting to 24 mph.
Thursday
 
Sunny. Patchy light fog in the morning. Breezy and cool. High 65°. UV index up to 8. Wind south-southeast around 13 mph, gusting to 25 mph.

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