Belvidere Weather Forecast

    • 53
    • 60

    Rain Showers

    • 46
    • 68

    Mostly Cloudy

    • 45
    • 61

    Mostly Cloudy

    • 45
    • 62

    Slight Chance Rain Showers

    • 46
    • 61

    Chance Rain Showers

    • 47
    • 62

    Chance Rain Showers

Today 20 Sep Central Middlesex County

A slight chance of Showers in the Morning, then Showers in the afternoon. Patchy fog in the afternoon. Highs around 60. Southeast Winds around 5 Mph. Chance of rain near 100 percent.

Tonight 20 Sep Central Middlesex County

Showers, mainly in the evening. Patchy fog. Lows in the lower 50s. East Winds around 5 Mph, becoming north after midnight. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Belvidere Temperature Statistics

September Temperature

Lawrence Municipal Airport (9.3 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    66.1 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Lawrence Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    60.9 °F
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