Frenchman Island Weather Forecast
- 40
- 50
Rain Showers
- 39
- 47
Chance Rain Showers
- 32
- 46
Slight Chance Rain Showers
- 33
- 48
Partly Sunny
- 34
- 49
Partly Sunny
- 38
- 50
Chance Rain Showers
Today 24 Oct Oswego
Lake effect Showers with a few Rumbles of thunder possible. Locally heavy rainfall possible in the morning. Highs Ranging from the mid 40s on the tug hill to the lower 50s across the lower Elevations. Light Winds, becoming west 10 to 15 Mph. Chance of rain near 100 percent.
Tonight 24 Oct Oswego
Mostly cloudy with a 50 percent chance of rain Showers. Lows Ranging from the mid 30s across the tug hill to around 40 along the lake Ontario shore. West Winds 5 to 10 Mph, becoming light.
Frenchman Island Temperature Statistics
October Temperature
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Lowest 10 October, 2025
30.9 °FAverage October
56.1 °FHighest 5 October, 2025
84.9 °F
Climate (2020–Present)
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Average Low 2020–2025
43.1 °FAverage 2020–2025
51.9 °FAverage High 2020–2025
60.9 °F