Demster Weather Forecast
- 51
- 79
Rain Showers
- 51
- 65
Partly Sunny
- 57
- 77
Partly Sunny
- 59
- 78
Rain Showers
- 58
- 78
Rain Showers Likely
- 56
- 72
Slight Chance Rain Showers
Today 14 Jun Oswego
Showers with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail late. Locally heavy rainfall possible. Highs Ranging from the mid 70s on the tug hill to around 80 across the lower Elevations. Light Winds, becoming north 5 to 10 Mph. Chance of rain near 100 percent.
Tonight 14 Jun Oswego
Mostly cloudy. Showers with a chance of Thunderstorms Early, then Showers late this evening. A chance of Showers after midnight. Some Thunderstorms may be severe with damaging Winds and large hail early. Locally heavy rainfall possible early. Lows Ranging from the mid 40s on the tug hill to around 50 across the lower Elevations. North Winds 10 to 15 Mph, becoming northwest. Chance of rain 90 percent.
Demster Temperature Statistics
June Temperature
Fulton, Oswego County Airport (10.6 miles)
Lowest 2 June, 2026
41 °FAverage June
66.5 °FHighest 9 June, 2026
87.1 °F
Climate (2021–Present)
Fulton, Oswego County Airport (10.6 miles)
Average Low 2021–2026
40.7 °FAverage 2021–2026
49.4 °FAverage High 2021–2026
58 °F