Diamond Lake Weather Forecast

    • 72
    • 91

    Slight Chance Thunderstorms

    • 66
    • 92

    Slight Chance Thunderstorms

    • 72
    • 89

    Mostly Sunny

    • 72
    • 97

    Chance Thunderstorms

    • 62
    • 87

    Mostly Sunny

    • 60
    • 80

    Slight Chance Thunderstorms

    • 60
    • 84

    Slight Chance Thunderstorms

Today 17 Jul Poweshiek

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 17 Jul Poweshiek

Mostly clear. A slight chance of Showers and Thunderstorms this evening. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Lake Temperature Statistics

July Temperature

Pella, Pella Municipal Airport (23.6 miles)

  • Lowest 13 July, 2026

    64.2 °F

  • Average July

    77.2 °F

  • Highest 2 July, 2026

    91 °F

Climate (2021–2026)

Pella, Pella Municipal Airport (23.6 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    62.5 °F
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