Frenchman Island Weather Forecast
- 61
- 80
Chance Rain Showers
- 61
- 82
Chance Rain Showers
- 61
- 77
Rain Showers Likely
- 63
- 79
Chance Rain Showers
- 64
- 81
Partly Sunny
- 64
- 83
Chance Rain Showers
Today 4 Jul Oswego
Mostly cloudy. A chance of Showers Early, then a chance of Showers and Thunderstorms late this morning. Showers likely with a chance of Thunderstorms early this Afternoon, then a chance of Showers and Thunderstorms late. Highs Ranging from the upper 70s along the lake Ontario shore to the lower 80s inland. Light Winds. Chance of rain 60 percent.
Tonight 4 Jul Oswego
Mostly cloudy. A chance of Showers in the evening. Lows Ranging from the lower 60s across the tug hill to the mid 60s along the lake Ontario shore. Light Winds. Chance of rain 30 percent.
Frenchman Island Temperature Statistics
July Temperature
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Lowest 1 July, 2026
73.9 °FAverage July
84.2 °FHighest 1 July, 2026
96.1 °F
Climate (2021–2026)
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Average Low 2021–2026
42.6 °FAverage 2021–2026
51.5 °FAverage High 2021–2026
60.6 °F