Late June will feel like late August this weekend in the Kingstowne area as temperatures reach the upper 90s and possibly 100 degrees Thursday through Monday.

The high temperature will be 94 with sun on Thursday. Temperatures will climb to 98 Friday, 99 Saturday and 100 Sunday. Temperatures will drop back to 99 Monday and 97 Tuesday, according to the National Weather Service extended forecast.

Friday’s skies will be partly cloudy, and there is a slight chance of  thunderstorms Friday afternoon, evening and overnight. The National Weather Service has issued an Extreme Heat Watch from Friday morning through Friday evening. The heat index could reach 110 degrees. 

Saturday and Sunday will be sunny and mostly clear.

The humidity will hover around 50 percent during the day, rising slightly overnight  from Thursday through Monday.

What is a heat index?

According to NOAA.gov, the heat index "provides a sense of how hot it really feels when the effects of relative humidity are combined with the actual air temperature."

Ways to keep cool during a heat wave:

• Fairfax County Cooling Assistance and Fan Care programs
• Lee District RECenter
• Our Special Sprayground
• John Marshall Community Library
• Kingstowne 16
• Kingstowne Library
• Manchester Lakes Pool
• Springboard Pool

Tell us in the comments: 

How are you staying cool this weekend?