Winchester Weather Forecast

    • 58
    • 85

    Increasing Clouds

    • 56
    • 86

    Decreasing Clouds

    • 57
    • 88

    Mostly Sunny

    • 56
    • 89

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

Today 21 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 81 to 88. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 21 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this Evening, then mostly cloudy with patchy fog and drizzle overnight. Cooler. Lows 49 to 59. Areas of Winds southwest 10 to 15 Mph this evening becoming light.

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Winchester Temperature Statistics

July Temperature

Murrieta/Temecula French Valley (9.3 miles)

  • Lowest 6 July, 2025

    53.6 °F

  • Average July

    73.7 °F

  • Highest 9 July, 2025

    100.4 °F

Climate (2020–Present)

Murrieta/Temecula French Valley (9.3 miles)

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  • Average Low 2020–2025

    50.7 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    77.8 °F
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