Sudbury Weather Forecast

    • 42
    • 66

    Increasing Clouds

    • 52
    • 60

    Rain Showers

    • 46
    • 67

    Mostly Cloudy

    • 46
    • 61

    Mostly Cloudy

    • 45
    • 62

    Slight Chance Rain Showers

    • 46
    • 61

    Chance Rain Showers

Today 19 Sep Central Middlesex County

Mostly sunny and cooler. Near steady temperature in the mid 60s. East Winds around 5 Mph.

Tonight 19 Sep Central Middlesex County

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 40s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sudbury Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    65.7 °F

  • Highest 4 September, 2026

    84 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
Get WillyWeather+ to remove ads