Oswego, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oswego, a city in Labette County, Kansas.
Today
97°F
Sunny
Sunny, with a high near 97. South southwest wind around 14 mph, with gusts as high as 22 mph.
7-day forecast for Oswego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 14 mph SSW | 6% |
| Tonight | 71°F | Partly Cloudy then Chance Showers And Thunderstorms | 6 to 12 mph S | 41% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 7 mph SSW | 47% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 6 mph N | 56% |
| Monday | 80°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 23% |
| Monday Night | 59°F | Partly Cloudy | 7 to 12 mph NNE | 8% |
| Tuesday | 75°F | Partly Sunny | 10 mph NNE | 5% |
| Tuesday Night | 54°F | Partly Cloudy | 6 to 12 mph NE | 1% |
| Wednesday | 78°F | Mostly Sunny | 8 mph NE | 2% |
| Wednesday Night | 56°F | Partly Cloudy | 7 mph ENE | 2% |
| Thursday | 80°F | Mostly Sunny | 6 mph E | 9% |
| Thursday Night | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph E | 15% |
| Friday | 81°F | Slight Chance Rain Showers | 7 mph E | 23% |
| Friday Night | 61°F | Partly Cloudy | 7 mph ENE | 10% |
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 Sep 19, 2026.