Koester Reservoir Weather Forecast

    • 75
    • 96

    Chance Thunderstorms

    • 72
    • 95

    Chance Thunderstorms

    • 74
    • 95

    Slight Chance Thunderstorms

    • 74
    • 99

    Hot

    • 70
    • 100

    Chance Thunderstorms

    • 66
    • 91

    Partly Sunny

Today 30 Jun Thayer

Sunny in the morning then becoming partly cloudy. Hot. Highs in the mid 90s. South Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 30 Jun Thayer

Mostly cloudy with a 30 percent chance of Showers and Thunderstorms. Lows in the mid 70s. South Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Koester Reservoir Temperature Statistics

June Temperature

Hebron, Hebron Municipal Airport (9.9 miles)

  • Lowest 15 June, 2026

    49.1 °F

  • Average June

    72.1 °F

  • Highest 9 June, 2026

    92.8 °F

Climate (2021–2026)

Hebron, Hebron Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    67 °F
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