Sexsmith Lake Weather Forecast

    • 47
    • 59

    Chance Rain Showers

    • 41
    • 61

    Mostly Cloudy

    • 41
    • 59

    Mostly Cloudy

    • 40
    • 58

    Mostly Cloudy

    • 41
    • 59

    Mostly Cloudy

    • 42
    • 62

    Chance Rain Showers

Today 20 Sep Delaware

Cloudy with a 50 percent chance of Showers. Highs in the lower 60s. South Winds around 5 Mph.

Tonight 20 Sep Delaware

Mostly cloudy. Lows in the upper 40s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sexsmith Lake Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (52.2 miles)

  • Lowest 15 September, 2026

    42.1 °F

  • Average September

    64.9 °F

  • Highest 3 September, 2026

    81 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (52.2 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.9 °F

  • Average High 2021–2026

    55.2 °F
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