WXSIM Forecast for: Thurmont
Issued by: Ammenheuser Weather
Updated: Friday, 22-May-2026 05:53 am
 
Today

Rain likely
Rain likely
Tonight

Rain likely
Rain likely
Saturday

Rain likely
Rain likely
Saturday
night
Chance rain
Chance rain
Sunday

Chance rain
Chance rain
Sunday
night
Chance rain
Chance rain
Monday

Rain likely
Rain likely
Monday
night
Cloudy
Cloudy
.5 in. 1.5 in. 1.0 in. <.1 in. <.25 in. <.25 in. .5 in.
High: 58° Low: 49° High: 52° Low: 48° High: 60° Low: 53° High: 64° Low: 57°
               
ENE
6
mph
Light breeze
E
7
mph
Light breeze
E
10-18
mph
Moderate breeze
E
10-18→6
mph
Moderate breeze
E
4
mph
Light breeze
NE
3
mph
Light air
N→W
3
mph
Light air
SSW
2
mph
Light air
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 
UV: 4
 Medium 

 

Today
 
Dense overcast. Patchy light fog in the afternoon. A slight chance of rain in the morning, then rain likely in the afternoon. Cool. High 58°, but temperatures falling in the afternoon. UV index up to 2. Wind east-northeast around 6 mph. Chance of precipitation 80 percent. Precipitation mostly around half an inch.
Tonight
 
Dense overcast. Patchy light fog. Rain likely. Cool. Low 49°. Wind east around 7 mph. Chance of precipitation 80 percent. Precipitation mostly between 1 and 2 inches.
Saturday
 
Dense overcast. Patchy light fog in the morning. Rain likely. Cool. High 52°. UV index up to 2. Wind east around 10 mph, gusting to 18 mph. Chance of precipitation 80 percent. Precipitation mostly around an inch.
Saturday night
 
Dense overcast. Patchy light fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Cool. Low 48°, but temperatures rising after midnight. Wind east around 10 mph, gusting to 18 mph, in the evening, becoming 6 mph after midnight. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Sunday
 
Dense overcast. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 60°. UV index up to 2. Wind east around 4 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Sunday night
 
Dense overcast. A chance of rain after midnight. Precipitation showery or intermittent. Low 53°. Wind northeast around 3 mph. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Monday
 
Dense overcast. Patchy light fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. Precipitation showery or intermittent. High 64°. UV index up to 4. Wind north around 3 mph in the morning, becoming west in the afternoon. Chance of precipitation 80 percent. Precipitation mostly around half an inch.
Monday night
 
Cloudy in the evening, becoming dense overcast after midnight. Low 57°. Wind south-southwest around 2 mph.
Tuesday
 
Dense overcast. Patchy light fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon. High 64°. UV index up to 3. Wind east-southeast around 3 mph in the morning, becoming south-southwest in the afternoon. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Tuesday night
 
Cloudy. Low 61°. Wind south-southwest around 5 mph.

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