WXSIM Forecast for: Harrisonburg
Issued by: HBurg-wx.net
Updated: Thursday, 18-Jun-2026 11:00 am
 
This
afternoon
Thunder storm
Thunder storm
Tonight

Thunder storm
Thunder storm
Friday

Thunder storm
Thunder storm
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Partly Cloudy
Partly Cloudy
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Partly Cloudy
Partly Cloudy
Sunday
night
Thunder storm
Thunder storm
<.1 in. <.1 in. <.1 in. <.1 in.
High: 82° Low: 68° High: 83° Low: 60° High: 79° Low: 61° High: 87° Low: 65°
               
WSW
9-20
mph
Fresh breeze
WSW
8-19→3
mph
Fresh breeze
NW
2→9-19
mph
Fresh breeze
NW→W
7-19→2
mph
Fresh breeze
WNW
5-19→10-19
mph
Fresh breeze
NW
3-15
mph
Moderate breeze
NW
2→6
mph
Light breeze
NNE
3
mph
Light air
UV: 8
 Very High 
UV: 10
 Very High 
UV: 10
 Very High 
UV: 10
 Very High 

 

This afternoon
 
Mostly cloudy. A chance of rain. Scattered thunderstorms likely. High 82°. UV index up to 8. Wind west-southwest around 9 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Tonight
 
Mostly cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Thunderstorms very likely, some possibly severe. Low 68°. Wind west-southwest around 8 mph, gusting to 19 mph, in the evening, becoming 3 mph after midnight. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Friday
 
Mostly cloudy to cloudy in the morning, becoming sunny in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. Scattered thunderstorms likely, some possibly severe. High 83°. UV index up to 10. Wind northwest around 2 mph in the morning, becoming 9 mph, gusting to 19 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 60°. Wind northwest around 7 mph, gusting to 19 mph, in the evening, becoming west around 2 mph after midnight.
Saturday
 
Partly cloudy in the morning, becoming sunny in the afternoon. High 79°. UV index up to 10. Wind west-northwest around 5 mph, gusting to 19 mph, in the morning, becoming 10 mph, gusting to 19 mph, in the afternoon.
Saturday night
 
Mostly clear in the evening, becoming fair to partly cloudy after midnight. Low 61°. Wind northwest around 3 mph, gusting to 15 mph.
Sunday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. High 87°. UV index up to 10. Wind northwest around 2 mph in the morning, becoming 6 mph in the afternoon.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Scattered thundershowers possible. Low 65°. Wind north-northeast around 3 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.

WXSIM forecast formatting script by Saratoga-Weather.org.