Santee Recreational Lakes Weather Forecast

    • 56
    • 82

    Increasing Clouds

    • 55
    • 73

    Mostly Cloudy

    • 53
    • 75

    Partly Sunny

    • 52
    • 72

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

Today 11 May San Diego County Inland Valleys

Mostly sunny. Highs 76 to 81 in the western Valleys to 86 to 91 near the Foothills. Areas of Winds west to 10 Mph becoming 10 to 15 Mph this afternoon.

Tonight 11 May San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 52 to 58 in wind Sheltered Areas to 54 to 62 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santee Recreational Lakes Temperature Statistics

May Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 6 May, 2026

    51.8 °F

  • Average May

    61.9 °F

  • Highest 8 May, 2026

    80.6 °F

Climate (2021–Present)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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