Lake Poway Weather Forecast

    • 54
    • 75

    Mostly Cloudy

    • 54
    • 73

    Decreasing Clouds

    • 53
    • 72

    Mostly Cloudy

    • 53
    • 77

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 55
    • 80

    Mostly Sunny

    • 55
    • 79

    Partly Sunny

Today 15 May San Diego County Inland Valleys

Mostly cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs 70 to 75. Areas of Winds southwest to 10 Mph becoming west this afternoon.

Tonight 15 May San Diego County Inland Valleys

Partly cloudy this Evening, then cloudy with patchy fog and drizzle overnight. Lows 50 to 54. Areas of Winds southwest to 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Poway Temperature Statistics

May Temperature

Ramona, Ramona Airport (5.6 miles)

  • Lowest 6 May, 2026

    39.9 °F

  • Average May

    61.2 °F

  • Highest 11 May, 2026

    90 °F

Climate (2021–Present)

Ramona, Ramona Airport (5.6 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    76.9 °F
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