Oswego, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oswego, a city in Labette County, Kansas.
Today
98°F
Sunny
Sunny, with a high near 98. South southeast wind 6 to 9 mph.
7-day forecast for Oswego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 6 to 9 mph SSE | 8% |
| Tonight | 76°F | Partly Cloudy | 7 mph SE | 2% |
| Wednesday | 98°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 to 10 mph SSW | 19% |
| Wednesday Night | 74°F | Slight Chance Showers And Thunderstorms | 7 mph ESE | 21% |
| Thursday | 95°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph S | 33% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 67% |
| Friday | 94°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 9 mph S | 67% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SSE | 15% |
| Saturday | 96°F | Slight Chance Showers And Thunderstorms then Sunny | 6 to 10 mph S | 15% |
| Saturday Night | 74°F | Mostly Clear | 10 mph S | 3% |
| Sunday | 97°F | Sunny | 8 to 13 mph SSW | 2% |
| Sunday Night | 75°F | Mostly Clear | 12 mph S | 1% |
| Monday | 97°F | Sunny | 9 to 14 mph SSW | 0% |
| Monday Night | 76°F | Mostly Clear | 10 to 14 mph S | 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 Aug 4, 2026.