The Chemistry Weather Forecast

    • 55
    • 60

    Rain

    • 50
    • 67

    Mostly Cloudy

    • 49
    • 61

    Mostly Cloudy

    • 49
    • 63

    Mostly Cloudy

    • 49
    • 62

    Chance Rain Showers

    • 50
    • 63

    Chance Rain Showers

Today 20 Sep Southeast Middlesex

Mostly cloudy. A slight chance of Showers this Morning, then Showers this afternoon. Patchy fog this afternoon. Highs in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 80 percent.

Tonight 20 Sep Southeast Middlesex

Showers. Patchy fog. Lows in the lower 50s. East Winds around 5 Mph, becoming north after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

The Chemistry Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (6.8 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    65.9 °F

  • Highest 4 September, 2026

    84 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (6.8 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
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