Grantham Weather Forecast

    • 75
    • 96

    Thunderstorms Likely

    • 68
    • 87

    Chance Thunderstorms

    • 71
    • 89

    Slight Chance Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

    • 77
    • 94

    Slight Chance Thunderstorms

    • 77
    • 97

    Slight Chance Thunderstorms

    • 76
    • 96

    Chance Thunderstorms

Today 21 Jul Wayne

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the mid 90s. Northwest Winds around 5 Mph. Chance of rain 30 percent. Heat index Values up to 107.

Tonight 21 Jul Wayne

Partly cloudy with a chance of Showers and Thunderstorms. Lows in the mid 70s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantham Temperature Statistics

July Temperature

Seymour-Johnson Air Force Base (12.4 miles)

  • Lowest 5 July, 2025

    68.9 °F

  • Average July

    82.3 °F

  • Highest 19 July, 2025

    97 °F

Climate (2020–Present)

Seymour-Johnson Air Force Base (12.4 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.5 °F

  • Average High 2020–2025

    74 °F
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