WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Tuesday, 28-Jul-2026 08:53 pm
 
Tonight

Fog
Fog
Wednesday

Fog a.m.
Fog a.m.
Wednesday
night
Partly Cloudy
Partly Cloudy
Thursday

Partly Cloudy
Partly Cloudy
Thursday
night
Fog late
Fog late
Friday

Fog a.m.
Fog a.m.
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Chance rain
Chance rain
.1 in.
Low: 68° High: 81° Low: 64° High: 79° Low: 60° High: 83° Low: 65° High: 77°
               
NNW
4
mph
Light breeze
NNW
10-20
mph
Fresh breeze
NNW
9-19→5
mph
Fresh breeze
NNW
8-19→12-23
mph
Fresh breeze
NNW
6-17→3
mph
Moderate breeze
N
5
mph
Light breeze
SE
3
mph
Light air
SE
6-18→11-18
mph
Moderate breeze
UV: 7
 High 
UV: 7
 High 
UV: 7
 High 
UV: 4
 Medium 

 

Tonight
 
Fair to partly cloudy in the evening, becoming fair after midnight. Moderate fog. Low 68°. Wind north-northwest around 4 mph.
Wednesday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 81°. UV index up to 7. Wind north-northwest around 10 mph, gusting to 20 mph.
Wednesday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 64°. Wind north-northwest around 9 mph, gusting to 19 mph, in the evening, becoming 5 mph after midnight.
Thursday
 
Partly cloudy. High 79°. UV index up to 7. Wind north-northwest around 8 mph, gusting to 19 mph, in the morning, becoming 12 mph, gusting to 23 mph, in the afternoon.
Thursday night
 
Mostly clear in the evening, becoming clear after midnight. Patchy light fog after midnight. Relatively cool. Low 60°. Wind north-northwest around 6 mph, gusting to 17 mph, in the evening, becoming 3 mph after midnight.
Friday
 
Sunny in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. High 83°. UV index up to 7. Wind north around 5 mph.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 65°. Wind southeast around 3 mph.
Saturday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. A chance of rain in the afternoon. Precipitation showery or intermittent. High 77°. UV index up to 4. Wind southeast around 6 mph, gusting to 18 mph, in the morning, becoming 11 mph, gusting to 18 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Saturday night
 
Dense overcast. Patchy light fog in the evening, then light to moderate fog after midnight. Rain likely in the evening, then a chance of rain after midnight. Precipitation showery or intermittent. Low 67°. Wind south-southeast around 8 mph, gusting to 16 mph, in the evening, becoming 4 mph after midnight. Chance of precipitation 80 percent. Precipitation mostly around half an inch.

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