WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Friday, 01-May-2026 05:53 am
 
Today

Mostly Cloudy
Mostly Cloudy
Tonight

Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Clear
Clear
Sunday

Partly Cloudy
Partly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Partly Cloudy
Partly Cloudy
Monday
night
Partly Cloudy
Partly Cloudy
<.1 in.
High: 61° Low: 40° High: 57° Low: 39° High: 56° Low: 41° High: 66° Low: 46°
               
SW
2→5
mph
Light breeze
NW
4
mph
Light breeze
NW
6-15
mph
Moderate breeze
NW
6-15
mph
Moderate breeze
NW
10-20
mph
Fresh breeze
WNW→SW
4
mph
Light breeze
SW
5-16→10-20
mph
Fresh breeze
S
7
mph
Light breeze
UV: 5
 Medium 
UV: 7
 High 
UV: 6
 High 
UV: 6
 High 

 

Today
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. High 61°. UV index up to 5. Wind southwest around 2 mph in the morning, becoming 5 mph in the afternoon.
Tonight
 
Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Cool. Low 40°. Wind northwest around 4 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Saturday
 
Partly to mostly cloudy. Patchy light fog in the morning. High 57°. UV index up to 7. Wind northwest around 6 mph, gusting to 15 mph.
Saturday night
 
Fair in the evening, becoming clear after midnight. Cool. Low 39°. Wind northwest around 6 mph, gusting to 15 mph.
Sunday
 
Sunny in the morning, becoming partly cloudy in the afternoon. High 56°. UV index up to 6. Wind northwest around 10 mph, gusting to 20 mph.
Sunday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Cool. Low 41°. Wind west-northwest around 4 mph in the evening, becoming southwest after midnight.
Monday
 
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. High 66°. UV index up to 6. Wind southwest around 5 mph, gusting to 16 mph, in the morning, becoming 10 mph, gusting to 20 mph, in the afternoon.
Monday night
 
Fair to partly cloudy. Low 46°. Wind south around 7 mph.
Tuesday
 
Partly cloudy in the morning, becoming mostly cloudy in the afternoon. Breezy. High 72°. UV index up to 6. Wind south around 11 mph, gusting to 20 mph, in the morning, becoming 14 mph, gusting to 22 mph, in the afternoon.
Tuesday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. A chance of rain after midnight. Precipitation showery or intermittent. Low 55°. Wind south around 10 mph, gusting to 18 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.

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