Grimsby Weather Forecast

    • 34
    • 56

    Chance Rain

    • 44
    • 62

    Partly Sunny

    • 58
    • 65

    Mostly Cloudy

    • 50
    • 72

    Partly Sunny

    • 44
    • 72

    Chance Rain Showers

    • 33
    • 58

    Slight Chance Rain Showers

Today 15 Feb Jackson

Cloudy with a chance of rain this Morning, then partly sunny this afternoon. Highs in the mid 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 15 Feb Jackson

Mostly clear in the Evening, then becoming partly cloudy. Areas of fog after midnight. Lows in the mid 30s. North Winds around 5 Mph, becoming west after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grimsby Temperature Statistics

February Temperature

Southern Illinois Airport (11.2 miles)

  • Lowest 1 February, 2026

    0.6 °F

  • Average February

    32.9 °F

  • Highest 10 February, 2026

    66.9 °F

Climate (2021–Present)

Southern Illinois Airport (11.2 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.8 °F
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