National Weather Service Forecast for: Pittsburgh PA
Issued by: National Weather Service Pittsburgh, PA
Updated: 4:11 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny and hot, with a high near 94. Heat index values as high as 102. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Hot

 Tonight

Tonight: Partly cloudy, with a low around 76. Southwest wind 3 to 7 mph.
Partly Cloudy

 Wednesday

Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 106. West wind 5 to 8 mph.
Hot

 Wednesday
Night
Wednesday Night: Clear, with a low around 76. West wind around 5 mph becoming calm in the evening.
Clear

 Thursday

Thursday: Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Hot

 Thursday
Night
Thursday Night: Mostly clear, with a low around 77.
Mostly Clear

 Friday

Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 30%.
Sunny then
Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Chance
T-storms
 Independence
Day
Independence Day: A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 93. Chance of precipitation is 50%.
Mostly Sunny
then Chance
T-storms
Hi 94 °F Lo 76 °F Hi 98 °F Lo 76 °F Hi 100 °F Lo 77 °F Hi 99 °F Lo 75 °F Hi 93 °F

Heat Advisory
Hazardous Weather Outlook
 

Today
 
 Mostly sunny and hot, with a high near 94. Heat index values as high as 102. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tonight
 
 Partly cloudy, with a low around 76. Southwest wind 3 to 7 mph.
Wednesday
 
 Sunny and hot, with a high near 98. Heat index values as high as 106. West wind 5 to 8 mph.
Wednesday Night
 
 Clear, with a low around 76. West wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 77.
Friday
 
 A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 30%.
Friday Night
 
 A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Independence Day
 
 A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 93. Chance of precipitation is 50%.
Saturday Night
 
 A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
 
 A chance of showers and thunderstorms. Partly sunny and hot, with a high near 91. Chance of precipitation is 40%.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Monday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Pittsburgh PA.