National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Atlanta, De Kalb-Peachtree Airport (KPDK)

Lat: 33.88°NLon: 84.3°WElev: 1001ft.

Fair

94°F

34°C

Humidity 41%
Wind Speed N 9 mph
Barometer 30.03 in (1014.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Aug 2:53 pm EDT
Extended Forecast for

Alpharetta GA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97. Heat index values as high as 104. West wind around 5 mph.

    High: 97 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 10pm and 2am. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming south around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97. Heat index values as high as 104. West wind around 5 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 10pm and 2am. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alpharetta GA
 34.09°N 84.26°W (Elev. 1083 ft)
Last Update:
2:26 pm EDT Aug 20, 2026
Forecast Valid:
3pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation