Diamond Lake Weather Forecast

    • 74
    • 89

    Slight Chance Thunderstorms

    • 73
    • 93

    Slight Chance Thunderstorms

    • 70
    • 87

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

    • 70
    • 88

    Mostly Sunny

    • 71
    • 91

    Slight Chance Thunderstorms

Today 22 Jul Poweshiek

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 102.

Tonight 22 Jul Poweshiek

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 70s. South Winds around 10 Mph. Chance of rain 20 percent. Heat index Values up to 101 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Lake Temperature Statistics

July Temperature

Pella, Pella Municipal Airport (23.6 miles)

  • Lowest 17 July, 2025

    59 °F

  • Average July

    75 °F

  • Highest 3 July, 2025

    90.1 °F

Climate (2020–Present)

Pella, Pella Municipal Airport (23.6 miles)

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

  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    62 °F
Get WillyWeather+ to remove ads