Sweet Marsh State Wildlife Management Area Weather Forecast

    • 69
    • 94

    Areas Smoke

    • 65
    • 84

    Partly Sunny

    • 67
    • 86

    Mostly Sunny

    • 68
    • 85

    Chance Thunderstorms

    • 64
    • 80

    Chance Rain Showers

    • 64
    • 83

    Mostly Sunny

Today 27 Jul Bremer

Mostly sunny. Areas of smoke this afternoon. Humid with Highs in the mid 90s. South Winds 5 to 10 Mph, becoming west 10 to 15 Mph this afternoon. Heat index Values up to 114.

Tonight 27 Jul Bremer

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy smoke in the evening. Humid with Lows in the upper 60s. Northwest Winds 10 to 15 Mph, becoming north 5 to 10 Mph after midnight. Heat index Values up to 105 early in the evening.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

July Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 6 July, 2026

    64.4 °F

  • Average July

    74.7 °F

  • Highest 1 July, 2026

    87.8 °F

Climate (2021–2026)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.1 °F
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