Denny Weather Forecast

    • 23
    • 44

    Slight Chance Snow Showers

    • 14
    • 30

    Partly Sunny

    • 16
    • 31

    Partly Sunny

    • 10
    • 24

    Mostly Sunny

    • 26
    • 35

    Mostly Sunny

    • 26
    • 49

    Mostly Cloudy

    • 25
    • 38

    Chance Rain Showers

Today 16 Jan Perry

Mostly cloudy with a 30 percent chance of Showers. Near steady temperature in the lower 40s. West Winds 5 to 10 Mph.

Tonight 16 Jan Perry

A slight chance of rain Showers in the evening. Mostly cloudy with a slight chance of snow Showers. Lows in the lower 20s. West Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Denny Temperature Statistics

January Temperature

Southern Illinois Airport (18.6 miles)

  • Lowest 4 January, 2026

    21 °F

  • Average January

    42.3 °F

  • Highest 8 January, 2026

    68 °F

Climate (2021–Present)

Southern Illinois Airport (18.6 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    68.9 °F
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