WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Wednesday, 10-Jun-2026 02:53 pm
 
This
afternoon
Thunder storm
Thunder storm
Tonight

Thunder storm
Thunder storm
Thursday

Thunder storm
Thunder storm
Thursday
night
Thunder storm
Thunder storm
Friday

Thunder storm
Thunder storm
Friday
night
Thunder storm
Thunder storm
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Fog late
Fog late
.1 in. <.1 in. .1 in. <.1 in. .1 in. .25 in.
High: 84° Low: 69° High: 84° Low: 70° High: 84° Low: 66° High: 81° Low: 65°
               
WSW
8-17
mph
Moderate breeze
W
6
mph
Light breeze
W
7-16
mph
Moderate breeze
SW
5
mph
Light breeze
W
7-18
mph
Moderate breeze
WNW
9-17→5
mph
Moderate breeze
WNW
6-16
mph
Moderate breeze
SW
4
mph
Light breeze
UV: 7
 High 
UV: 7
 High 
UV: 9
 Very High 
UV: 9
 Very High 

 

This afternoon
 
Partly to mostly cloudy. A chance of rain. Scattered thunderstorms likely. High 84°. UV index up to 7. Wind west-southwest around 8 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly around a tenth of an inch.
Tonight
 
Moderate fog. A chance of rain. Scattered thundershowers possible. Low 69°. Wind west around 6 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. Moderate fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thunderstorms likely. High 84°. UV index up to 7. Wind west around 7 mph, gusting to 16 mph. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.
Thursday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Scattered thundershowers possible. Low 70°. Wind southwest around 5 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Friday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thunderstorms likely. Warm. High 84°. UV index up to 9. Wind west around 7 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.
Friday night
 
Mostly cloudy in the evening, becoming mostly clear after midnight. Moderate fog in the evening, then moderate to dense fog after midnight. A chance of rain. Scattered thundershowers possible. Low 66°. Wind west-northwest around 9 mph, gusting to 17 mph, in the evening, becoming 5 mph after midnight. Chance of precipitation 50 percent. Precipitation mostly around a quarter of an inch.
Saturday
 
Sunny. Moderate fog in the morning. High 81°. UV index up to 9. Wind west-northwest around 6 mph, gusting to 16 mph.
Saturday night
 
Fair in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 65°. Wind southwest around 4 mph.
Sunday
 
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Warm. High 84°. UV index up to 8. Wind southwest around 5 mph in the morning, becoming 9 mph, gusting to 17 mph, in the afternoon.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain. Scattered thundershowers possible. Low 63°. Wind north-northwest around 5 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.

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