Decatur Weather Forecast

    • 63
    • 76

    Rain Showers Likely

    • 49
    • 74

    Rain Showers

    • 60
    • 77

    Chance Rain Showers

    • 66
    • 84

    Slight Chance Thunderstorms

    • 66
    • 87

    Mostly Cloudy

    • 67
    • 89

    Mostly Cloudy

    • 65
    • 88

    Mostly Cloudy

Today 30 Mar DeKalb

Showers likely with a chance of Thunderstorms. Near steady temperature in the lower 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 30 Mar DeKalb

Mostly cloudy with a chance of Showers. A chance of Thunderstorms. Some Thunderstorms may be severe after midnight. Lows in the lower 60s. Light south Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decatur Temperature Statistics

March Temperature

Atlanta, De Kalb-Peachtree Airport (6.8 miles)

  • Lowest 3 March, 2025

    27.8 °F

  • Average March

    55.4 °F

  • Highest 28 March, 2025

    79 °F

Climate (2020–Present)

Atlanta, De Kalb-Peachtree Airport (6.8 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.4 °F

  • Average High 2020–2025

    72.9 °F
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