WXSIM Forecast for: Harrisonburg
Issued by: HBurg-wx.net
Updated: Monday, 18-May-2026 11:00 am
 
This
afternoon
Clear
Clear
Tonight

Mostly Clear
Mostly Clear
Tuesday

Partly Cloudy
Partly Cloudy
Tuesday
night
Partly Cloudy
Partly Cloudy
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Thunder storm
Thunder storm
Thursday

Thunder storm
Thunder storm
Thursday
night
Rain likely
Rain likely
.35 in. <.25 in. 1.0 in.
High: 89° Low: 70° High: 91° Low: 70° High: 93° Low: 65° High: 66° Low: 50°
               
S
5
mph
Light breeze
SW
5
mph
Light breeze
SW
7-17
mph
Moderate breeze
SSW
6-16
mph
Moderate breeze
WSW
4→8-16
mph
Moderate breeze
NNW
3
mph
Light air
N
5
mph
Light breeze
N→ESE
calm

Calm
UV: 11
 Extreme 
UV: 9
 Very High 
UV: 9
 Very High 

 

This afternoon
 
Clear. High 89°. UV index up to 11. Wind south around 5 mph.
Tonight
 
Mostly clear. Low 70°. Wind southwest around 5 mph.
Tuesday
 
Partly cloudy. High 91°. UV index up to 9. Wind southwest around 7 mph, gusting to 17 mph.
Tuesday night
 
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Low 70°. Wind south-southwest around 6 mph, gusting to 16 mph.
Wednesday
 
Mostly sunny in the morning, becoming partly cloudy in the afternoon. High 93°. UV index up to 9. Wind west-southwest around 4 mph in the morning, becoming 8 mph, gusting to 16 mph, in the afternoon.
Wednesday night
 
Cloudy in the evening, becoming dense overcast after midnight. Rain likely. Thunderstorms very likely, some possibly severe. Low 65°. Wind north-northwest around 3 mph. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Thursday
 
Dense overcast. Patchy light fog in the morning. Rain likely. Thunderstorms very likely, some possibly severe. High 66°, but temperatures falling in the afternoon. Wind north around 5 mph. Chance of precipitation 60 percent. Precipitation mostly less than a quarter of an inch.
Thursday night
 
Dense overcast. Rain likely. Low 50°. Wind north near calm in the evening, becoming east-southeast after midnight. Chance of precipitation 80 percent. Precipitation mostly around an inch.

WXSIM forecast formatting script by Saratoga-Weather.org.