WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Thursday, 25-Jun-2026 03:12 pm
 
This
afternoon
Mostly Cloudy
Mostly Cloudy
Tonight

Partly Cloudy
Partly Cloudy
Friday

Chance rain
Chance rain
Friday
night
Chance rain
Chance rain
Saturday

Chance rain
Chance rain
Saturday
night
Chance rain
Chance rain
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
<.25 in. .25 in. <.25 in. <.1 in.
High: 84° Low: 66° High: 84° Low: 65° High: 80° Low: 65° High: 76° Low: 61°
               
S
8-18
mph
Moderate breeze
S
4
mph
Light breeze
SW→NNW
3
mph
Light air
NNE→ENE
2
mph
Light air
E→NW
2
mph
Light air
NNE
4
mph
Light breeze
NE
4
mph
Light breeze
NNE
2
mph
Light air
UV: 6
 High 
UV: 6
 High 
UV: 7
 High 
UV: 5
 Medium 

 

This afternoon
 
Partly to mostly cloudy. High 84°. UV index up to 6. Wind south around 8 mph, gusting to 18 mph.
Tonight
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 66°. Wind south around 4 mph.
Friday
 
Mostly cloudy to cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Precipitation showery or intermittent. High 84°. UV index up to 6. Wind southwest around 3 mph in the morning, becoming north-northwest in the afternoon. Chance of precipitation 40 percent. Precipitation mostly less than a quarter of an inch.
Friday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Precipitation showery or intermittent. Low 65°. Wind north-northeast around 2 mph in the evening, becoming east-northeast after midnight. Chance of precipitation 60 percent. Precipitation mostly around a quarter of an inch.
Saturday
 
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Precipitation showery or intermittent. High 80°. UV index up to 7. Wind east around 2 mph in the morning, becoming northwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Saturday night
 
Cloudy. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Precipitation showery or intermittent. Low 65°. Wind north-northeast around 4 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Sunday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 76°. UV index up to 5. Wind northeast around 4 mph.
Sunday night
 
Fair in the evening, becoming partly cloudy after midnight. Low 61°. Wind north-northeast around 2 mph.
Monday
 
Sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 82°. UV index up to 7. Wind northeast around 4 mph.
Monday night
 
Mostly cloudy in the evening, becoming clear after midnight. Low 61°. Wind east around 3 mph in the evening, becoming south after midnight.

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