Hannibal Weather Forecast
- 43
- 66
Becoming Sunny
- 47
- 68
Mostly Sunny
- 59
- 77
Chance Rain Showers
- 59
- 78
Chance Rain Showers
- 58
- 76
Chance Rain Showers
- 56
- 74
Chance Rain Showers
Today 19 Sep Oswego
Sunny, cooler with Highs Ranging from the lower 60s on the tug hill to the mid 60s across the lower Elevations. North Winds 10 Mph or Less, becoming northwest.
Tonight 19 Sep Oswego
Mainly clear with patchy frost developing overnight. Chilly with Lows Ranging from around 40 across the tug hill to the mid 40s along the lake Ontario shore. Light Winds.
Hannibal Temperature Statistics
September Temperature
Fulton, Oswego County Airport (9.3 miles)
Lowest 9 September, 2025
44.1 °FAverage September
61.2 °FHighest 3 September, 2025
80.1 °F
Climate (2020–Present)
Fulton, Oswego County Airport (9.3 miles)
Average Low 2020–2025
41.1 °FAverage 2020–2025
49.7 °FAverage High 2020–2025
58.4 °F