Chatham Weather Forecast

    • 26
    • 30

    Snow

    • 39
    • 55

    Increasing Clouds

    • 40
    • 67

    Partly Sunny

    • 47
    • 69

    Partly Sunny

    • 52
    • 77

    Mostly Sunny

    • 35
    • 74

    Partly Sunny

    • 33
    • 51

    Mostly Cloudy

Today 17 Mar Sangamon

Partly sunny. Highs in the upper 20s. Southwest Winds 5 to 10 Mph.

Tonight 17 Mar Sangamon

Snow likely late this Evening, then a chance of snow. Little or no snow accumulation. Not as cool. Near steady temperature in the upper 20s. South Winds 10 to 15 Mph. Gusts up to 30 Mph. Chance of snow 70 percent.

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  • Temperature Real-Time

Chatham Temperature Statistics

March Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 1 March, 2026

    22.6 °F

  • Average March

    49 °F

  • Highest 10 March, 2026

    84 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    65.3 °F
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