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

Partly Cloudy
Partly Cloudy
Tonight

Mostly Cloudy
Mostly Cloudy
Sunday

Rain likely
Rain likely
Sunday
night
Rain likely
Rain likely
Monday

Rain likely
Rain likely
Monday
night
Rain likely
Rain likely
Tuesday

Chance rain
Chance rain
Tuesday
night
Chance rain
Chance rain
.35 in. .5 in. <.25 in. <.25 in. <.25 in. <.1 in.
High: 86° Low: 71° High: 79° Low: 68° High: 79° Low: 69° High: 75° Low: 69°
               
S
3→8-17
mph
Moderate breeze
SE
7-16
mph
Moderate breeze
SE
6
mph
Light breeze
SSE
3
mph
Light air
SW
4
mph
Light breeze
SSW→ENE
2
mph
Light air
E
4
mph
Light breeze
ESE
2
mph
Light air
UV: 8
 Very High 
UV: 3
 Medium 
UV: 5
 Medium 
UV: 3
 Medium 

 

Today
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. High 86°. UV index up to 8. Wind south around 3 mph in the morning, becoming 8 mph, gusting to 17 mph, in the afternoon.
Tonight
 
Mostly cloudy in the evening, becoming cloudy after midnight. Low 71°. Wind southeast around 7 mph, gusting to 16 mph.
Sunday
 
Cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the afternoon. A slight chance of rain in the morning, then rain likely in the afternoon. Precipitation showery or intermittent. High 79°, but temperatures falling in the afternoon. UV index up to 3. Wind southeast around 6 mph. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Sunday night
 
Dense overcast. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain in the evening, then rain likely after midnight. Precipitation showery or intermittent. Low 68°. Wind south-southeast around 3 mph. Chance of precipitation 80 percent. Precipitation mostly around half an inch.
Monday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. Rain likely. Precipitation showery or intermittent. High 79°. UV index up to 5. Wind southwest around 4 mph. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Monday night
 
Cloudy in the evening, becoming dense overcast after midnight. Patchy light fog. Rain likely. Precipitation showery or intermittent. Low 69°. Wind south-southwest around 2 mph in the evening, becoming east-northeast after midnight. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Tuesday
 
Dense overcast. Patchy light fog in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Precipitation showery or intermittent. High 75°. UV index up to 3. Wind east around 4 mph. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Tuesday night
 
Dense overcast. Patchy light fog in the evening. A chance of rain in the evening, then a slight chance of rain after midnight. Low 69°. Wind east-southeast around 2 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Wednesday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. Precipitation showery or intermittent. High 83°. UV index up to 6. Wind south-southwest around 2 mph in the morning, becoming 6 mph in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 70°. Wind south around 7 mph, gusting to 15 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.

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