Oswego, KS Weather & Growing Conditions
Today
98°F
Sunny
Sunny, with a high near 98. South southeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 9 mph SSE | 9% |
| 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 | 73°F | Slight Chance Showers And Thunderstorms | 8 mph ESE | 20% |
| Thursday | 96°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph S | 32% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 68% |
| Friday | 94°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 9 mph S | 68% |
| 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 | 98°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). Updated through the day.
Growing snapshot for Oswego, KS
Last spring frost
Apr 11
First fall frost
Oct 26
Growing season
196 days
Hardiness zone
7a
Explore more for Oswego, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Parsons 2 Nw, Ks (15.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.