WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Friday, 15-May-2026 05:53 am
 
Today

Mostly Cloudy
Mostly Cloudy
Tonight

Partly Cloudy
Partly Cloudy
Saturday

Partly Cloudy
Partly Cloudy
Saturday
night
Chance rain
Chance rain
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Chance rain
Chance rain
Monday

Sunny
Sunny
Monday
night
Chance rain
Chance rain
<.1 in. <.1 in. .35 in. <.25 in.
High: 64° Low: 41° High: 69° Low: 44° High: 66° Low: 47° High: 85° Low: 58°
               
NW
9-18
mph
Moderate breeze
NW
4→calm
mph
Light breeze
SW
4→10-18
mph
Moderate breeze
W
6
mph
Light breeze
WNW
5
mph
Light breeze
NE→SW
2
mph
Light air
SSW
4→9-18
mph
Moderate breeze
W→S
4-15
mph
Moderate breeze
UV: 6
 High 
UV: 8
 Very High 
UV: 4
 Medium 
UV: 9
 Very High 

 

Today
 
Partly to mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 64°. UV index up to 6. Wind northwest around 9 mph, gusting to 18 mph.
Tonight
 
Partly cloudy in the evening, becoming fair after midnight. Cool. Low 41°. Wind northwest around 4 mph in the evening, becoming near calm after midnight.
Saturday
 
Sunny in the morning, becoming partly cloudy in the afternoon. High 69°. UV index up to 8. Wind southwest around 4 mph in the morning, becoming 10 mph, gusting to 18 mph, in the afternoon.
Saturday night
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. A chance of rain after midnight. Cool. Low 44°. Wind west around 6 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. A chance of rain. High 66°. UV index up to 4. Wind west-northwest around 5 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming fair to partly cloudy after midnight. A chance of rain in the evening. Low 47°. Wind northeast around 2 mph in the evening, becoming southwest after midnight. Chance of precipitation 60 percent. Precipitation mostly between a quarter and half an inch.
Monday
 
Sunny. Hot. High 85°. UV index up to 9. Wind south-southwest around 4 mph in the morning, becoming 9 mph, gusting to 18 mph, in the afternoon.
Monday night
 
Partly to mostly cloudy in the evening, becoming mostly clear after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Precipitation showery or intermittent. Low 58°. Wind west around 4 mph, gusting to 15 mph, in the evening, becoming south after midnight. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Tuesday
 
Sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. Hot. High 86°. UV index up to 9. Wind southwest around 6 mph, gusting to 16 mph.
Tuesday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Low 63°. Wind south around 3 mph in the evening, becoming west-southwest after midnight.

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