Foster Lake Weather Forecast

    • 60
    • 75

    Sunny

    • 58
    • 75

    Sunny

    • 56
    • 73

    Sunny

    • 57
    • 73

    Sunny

    • 61
    • 74

    Sunny

    • 64
    • 77

    Sunny

Today 13 Sep Riverside County Mountains

Sunny. Highs 80 to 90. Areas of Winds southwest to 10 Mph becoming west this afternoon.

Tonight 13 Sep Riverside County Mountains

Clear, cooler. Lows 50 to 60. Areas of Winds west 10 to 15 Mph.

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Foster Lake Temperature Statistics

September Temperature

Palm Springs Regional Airport (13 miles)

  • Lowest 3 September, 2026

    68.6 °F

  • Average September

    89.7 °F

  • Highest 10 September, 2026

    111.9 °F

Climate (2021–2026)

Palm Springs Regional Airport (13 miles)

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  • Average Low 2021–2026

    64.7 °F

  • Average 2021–2026

    77.6 °F

  • Average High 2021–2026

    90.3 °F
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