Sinclair Weather Forecast

    • 33
    • 58

    Chance Rain

    • 26
    • 43

    Chance Rain/Snow

    • 33
    • 52

    Chance Rain Showers

    • 31
    • 44

    Mostly Cloudy

    • 30
    • 49

    Rain/Snow Likely

    • 14
    • 37

    Chance Snow Showers

Today 10 Mar Grundy

Partly sunny with a 30 percent chance of rain. Highs in the upper 50s. East Winds 10 to 15 Mph.

Tonight 10 Mar Grundy

Cloudy with a 20 percent chance of rain. Lows in the lower 30s. North Winds 10 to 15 Mph.

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Sinclair Temperature Statistics

March Temperature

Waterloo, Waterloo Municipal Airport (16.8 miles)

  • Lowest 1 March, 2026

    15.7 °F

  • Average March

    38.6 °F

  • Highest 8 March, 2026

    64 °F

Climate (2021–Present)

Waterloo, Waterloo Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    61.9 °F
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