Sweetwater Marsh National Wildlife Refuge Weather Forecast

    • 61
    • 77

    Partly Sunny

    • 59
    • 75

    Partly Sunny

    • 59
    • 74

    Mostly Cloudy

    • 59
    • 74

    Partly Sunny

    • 60
    • 76

    Partly Sunny

    • 60
    • 78

    Partly Sunny

Today 20 Mar San Diego County Coastal Areas

Mostly sunny. Highs 78 to 83 near the coast to 87 to 92 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 20 Mar San Diego County Coastal Areas

Partly cloudy. Lows 55 to 61. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Marsh National Wildlife Refuge Temperature Statistics

March Temperature

Imperial Beach Naval Outlying Field - Ream Field (5 miles)

  • Lowest 6 March, 2026

    44.1 °F

  • Average March

    61.5 °F

  • Highest 8 March, 2026

    87.1 °F

Climate (2021–Present)

Imperial Beach Naval Outlying Field - Ream Field (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    56.4 °F

  • Average 2021–2026

    63 °F

  • Average High 2021–2026

    69.2 °F
Get WillyWeather+ to remove ads