Old Saybrook Weather Forecast

    • 54
    • 79

    Chance Thunderstorms

    • 49
    • 63

    Chance Rain Showers

    • 50
    • 59

    Mostly Cloudy

    • 50
    • 61

    Rain Showers Likely

    • 52
    • 65

    Chance Rain Showers

    • 54
    • 72

    Slight Chance Rain Showers

Today 20 May Southern Middlesex

Sunny in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 20 May Southern Middlesex

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Less humid with Lows in the mid 50s. Northwest Winds 5 to 10 Mph. Chance of rain 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Saybrook Temperature Statistics

May Temperature

Chester, Chester Airport (8.7 miles)

  • Lowest 1 May, 2026

    41 °F

  • Average May

    56.7 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

Chester, Chester Airport (8.7 miles)

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

  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.5 °F
Get WillyWeather+ to remove ads