Mendota Weather Forecast

    • 58
    • 77

    Mostly Cloudy

    • 56
    • 78

    Slight Chance Rain Showers

    • 59
    • 84

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

    • 60
    • 84

    Slight Chance Thunderstorms

    • 59
    • 81

    Slight Chance Thunderstorms

Today 23 May La Salle

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the upper 70s. North Winds around 5 Mph.

Tonight 23 May La Salle

Mostly cloudy. A slight chance of Showers early in the evening. A slight chance of Thunderstorms. A chance of Showers in the late evening and overnight. Lows in the upper 50s. Southeast Winds around 5 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mendota Temperature Statistics

May Temperature

Illinois Valley Regional Airport (13 miles)

  • Lowest 2 May, 2026

    33.8 °F

  • Average May

    60 °F

  • Highest 17 May, 2026

    87.8 °F

Climate (2021–Present)

Illinois Valley Regional Airport (13 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.6 °F
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