Sinclair Weather Forecast

    • -16
    • 20

    Chance Flurries

    • -11
    • -7

    Cold

    • -7
    • 1

    Cold

    • -9
    • 7

    Cold

    • 4
    • 14

    Cold

    • 4
    • 19

    Partly Sunny

Today 22 Jan Grundy

Partly cloudy Late, then becoming partly sunny. A chance of Flurries this afternoon. Patchy blowing snow this afternoon. Highs around 20. West Winds around 5 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 22 Jan Grundy

Partly cloudy in the Evening, then clearing. Much Colder with Lows around 16 below. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 38 below.

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Sinclair Temperature Statistics

January Temperature

Waterloo, Waterloo Municipal Airport (16.8 miles)

  • Lowest 20 January, 2026

    -9.9 °F

  • Average January

    23.9 °F

  • Highest 12 January, 2026

    48.9 °F

Climate (2021–Present)

Waterloo, Waterloo Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    61.6 °F
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