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

Hazardous Weather Conditions

Current conditions at

Cobb County International Airport - McCollum Field (KRYY)

Lat: 34.01°NLon: 84.6°WElev: 997ft.

Fair

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer NA
Dewpoint 71°F (22°C)
Visibility NA
Last update 18 Aug 4:50 am EDT
Extended Forecast for

4 Miles NNW Roswell GA

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 4pm. Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 93. Heat index values as high as 97. Calm wind becoming east around 5 mph.

    High: 93 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. East wind around 5 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. East wind around 5 mph.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northeast wind around 5 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 4pm. Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 93. Heat index values as high as 97. Calm wind becoming east around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. East wind around 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. East wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northeast wind around 5 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70.
Friday
A slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Roswell GA
 34.09°N 84.37°W (Elev. 1102 ft)
Last Update:
5:07 am EDT Aug 18, 2025
Forecast Valid:
5am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
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