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

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Fair

78°F

26°C

Humidity 74%
Wind Speed W 3 mph
Barometer 30.19 in (1021.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 7 Aug 8:50 pm EDT
Extended Forecast for

4 Miles W Roswell GA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 3am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 3am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 72. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 88.
Tuesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Roswell GA
 34.05°N 84.4°W (Elev. 1001 ft)
Last Update:
7:01 pm EDT Aug 7, 2026
Forecast Valid:
9pm EDT Aug 7, 2026-6pm EDT Aug 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation