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

50°F

10°C

Humidity 71%
Wind Speed Calm
Barometer 30.09 in (992.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 13 Mar 11:50 pm EDT
Extended Forecast for

4 Miles NW Roswell GA

  • Overnight

    Overnight: Clear, with a low around 43. Calm wind.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. Southeast wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 71. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 71 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, with thunderstorms also possible after 5am. Low around 44. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 44 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 43. Calm wind.
Saturday
Sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 52. Southeast wind around 5 mph.
Sunday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 71. East wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Showers, with thunderstorms also possible after 5am. Low around 44. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
Showers and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm. High near 56. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Roswell GA
 34.07°N 84.4°W (Elev. 997 ft)
Last Update:
9:02 pm EDT Mar 13, 2026
Forecast Valid:
12am EDT Mar 14, 2026-6pm EDT Mar 20, 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