Mendota Weather Forecast

    • 32
    • 43

    Increasing Clouds

    • 32
    • 48

    Mostly Cloudy

    • 14
    • 33

    Chance Snow Showers

    • 21
    • 26

    Chance Snow

    • 16
    • 33

    Snow Showers

    • 4
    • 19

    Mostly Cloudy

Today 12 Jan La Salle

Partly cloudy in the morning then clearing. Highs in the lower 40s. Southwest Winds 10 to 15 Mph.

Tonight 12 Jan La Salle

Mostly clear in the Evening, then becoming mostly cloudy. Near steady temperature in the lower 30s. Southwest Winds 10 to 15 Mph.

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Mendota Temperature Statistics

January Temperature

Illinois Valley Regional Airport (13 miles)

  • Lowest 1 January, 2026

    14 °F

  • Average January

    34.8 °F

  • Highest 8 January, 2026

    62.6 °F

Climate (2021–Present)

Illinois Valley Regional Airport (13 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.2 °F
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