Frenchman Island Weather Forecast
- 67
- 79
Rain Showers Likely
- 63
- 77
Partly Sunny
- 66
- 80
Rain Showers Likely
- 63
- 77
Chance Thunderstorms
- 62
- 77
Chance Rain Showers
- 60
- 75
Chance Rain Showers
Today 8 Aug Oswego
Mostly cloudy with a chance of Showers late this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs Ranging from the mid 70s on the tug hill to around 80 across the lower Elevations. Light southwest Winds. Chance of rain 50 percent.
Tonight 8 Aug Oswego
Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers and Thunderstorms overnight. Muggy with Lows Ranging from the lower 60s across the tug hill to the upper 60s along the lake Ontario shore. Light southwest Winds. Chance of rain 60 percent.
Frenchman Island Temperature Statistics
August Temperature
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Lowest 4 August, 2026
58.6 °FAverage August
74.7 °FHighest 5 August, 2026
91.7 °F
Climate (2021–2026)
Syracuse, Syracuse Hancock International Airport (7.5 miles)
Average Low 2021–2026
42.7 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
60.7 °F