Oswego, NY Weather & Growing Conditions
This Afternoon
66°F
Partly Sunny
Partly sunny, with a high near 66. Northeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Partly Sunny | 2 to 6 mph NE | 0% |
| Tonight | 48°F | Mostly Cloudy then Rain Showers Likely | 3 to 7 mph E | 64% |
| Sunday | 62°F | Rain Showers | 7 to 14 mph E | 86% |
| Sunday Night | 47°F | Mostly Cloudy | 8 to 14 mph NE | 1% |
| Monday | 62°F | Partly Sunny | 13 mph NE | 0% |
| Monday Night | 45°F | Mostly Cloudy | 5 to 13 mph NE | 0% |
| Tuesday | 64°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Tuesday Night | 45°F | Mostly Cloudy | 6 to 10 mph E | 1% |
| Wednesday | 65°F | Partly Sunny | 7 to 10 mph E | 3% |
| Wednesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 10 mph E | 17% |
| Thursday | 64°F | Slight Chance Rain Showers | 9 mph E | 20% |
| Thursday Night | 46°F | Slight Chance Rain Showers | 3 to 9 mph NE | 19% |
| Friday | 66°F | Slight Chance Rain Showers | 6 to 12 mph NE | 17% |
| Friday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 12 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oswego, NY
Last spring frost
Apr 22
First fall frost
Oct 29
Growing season
187 days
Hardiness zone
6a
Explore more for Oswego, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Oswego, Ny (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.