Riverside Weather Forecast

    • 48
    • 61

    Slight Chance Rain Showers

    • 46
    • 65

    Partly Sunny

    • 50
    • 72

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 53
    • 73

    Partly Sunny

    • 52
    • 74

    Partly Sunny

Today 23 Sep Jefferson

Cloudy. A slight chance of rain late this morning. Highs in the lower 60s. Northeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 23 Sep Jefferson

Mostly cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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Riverside Temperature Statistics

September Temperature

Winchester Regional (15.5 miles)

  • Lowest 15 September, 2026

    46.4 °F

  • Average September

    71.4 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Winchester Regional (15.5 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    64.4 °F
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