O'Shaughnessy Reservoir Weather Forecast

    • 62
    • 84

    Thunderstorms Likely

    • 54
    • 74

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 64
    • 84

    Partly Sunny

    • 68
    • 88

    Chance Rain Showers

Today 21 Jul Delaware

Showers likely with a chance of Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Humid with Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 21 Jul Delaware

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the lower 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

O'Shaughnessy Reservoir Temperature Statistics

July Temperature

Delaware Municipal Airport (6.2 miles)

  • Lowest 13 July, 2026

    64.4 °F

  • Average July

    78.8 °F

  • Highest 3 July, 2026

    96.8 °F

Climate (2021–2026)

Delaware Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    62 °F
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