Walnut Creek Weather Forecast

    • 64
    • 85

    Rain Showers

    • 60
    • 71

    Rain Likely

    • 53
    • 69

    Chance Rain

    • 52
    • 72

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

Today 22 Sep Wake

Mostly cloudy. Patchy fog in the morning. A slight chance of Showers and Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Highs in the mid 80s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 22 Sep Wake

Showers and Thunderstorms likely in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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Walnut Creek Temperature Statistics

September Temperature

Raleigh / Durham, Raleigh-Durham International Airport (14.3 miles)

  • Lowest 16 September, 2026

    60.7 °F

  • Average September

    81.5 °F

  • Highest 3 September, 2026

    101.6 °F

Climate (2021–2026)

Raleigh / Durham, Raleigh-Durham International Airport (14.3 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    63.4 °F

  • Average High 2021–2026

    74.4 °F
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