Diamond Lake Weather Forecast

    • 65
    • 93

    Chance Thunderstorms

    • 56
    • 84

    Becoming Sunny

    • 55
    • 80

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 56
    • 88

    Mostly Sunny

    • 54
    • 78

    Chance Rain Showers

    • 53
    • 76

    Rain Showers Likely

Today 7 Sep Brown

Breezy. Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. South Winds 10 to 15 Mph, increasing to 10 to 25 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 7 Sep Brown

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Southwest Winds around 10 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Lake Temperature Statistics

September Temperature

Ainsworth Regional Airport (24.2 miles)

  • Lowest 4 September, 2026

    61.5 °F

  • Average September

    76.7 °F

  • Highest 3 September, 2026

    93.9 °F

Climate (2021–2026)

Ainsworth Regional Airport (24.2 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    62.5 °F
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