Oswego, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oswego, a city in Labette County, Kansas.
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. West northwest wind 7 to 10 mph.
7-day forecast for Oswego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 7 to 10 mph WNW | 0% |
| Wednesday | 62°F | Mostly Sunny | 6 to 12 mph W | 0% |
| Wednesday Night | 42°F | Clear | 0 to 5 mph WSW | 1% |
| Thursday | 60°F | Mostly Sunny then Chance Rain Showers | 0 to 7 mph WNW | 48% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph NNW | 16% |
| Friday | 59°F | Mostly Sunny | 5 to 8 mph N | 0% |
| Friday Night | 39°F | Partly Cloudy | 0 to 5 mph NNE | 0% |
| Saturday | 59°F | Partly Sunny | 0 to 5 mph NNW | 1% |
| Saturday Night | 39°F | Mostly Clear | 1 mph WNW | 4% |
| Sunday | 64°F | Sunny | 1 to 7 mph W | 3% |
| Sunday Night | 40°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph SSW | 0% |
| Monday Night | 44°F | Mostly Clear | 6 mph SSW | 1% |
| Tuesday | 70°F | Sunny | 5 to 9 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Oswego (37.168, -95.112). Updated through the day.
Growing snapshot for Oswego
Last spring frost
Apr 11
First fall frost
Oct 26
Growing season
196 days
Hardiness zone
7a
More local growing data for Oswego: nearby ZIP 67356 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Parsons 2 Nw, Ks (15.4 mi from Oswego). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.