Riley, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riley, a city in Riley County, Kansas.
Today
89°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 11am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 89. East wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Riley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 17% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 26% |
| Wednesday | 79°F | Chance Showers And Thunderstorms | 10 mph NE | 36% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 31% |
| Thursday | 83°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 mph E | 23% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 47% |
| Friday | 89°F | Chance Showers And Thunderstorms then Sunny | 5 mph S | 41% |
| Friday Night | 70°F | Mostly Clear | 5 mph S | 5% |
| Saturday | 92°F | Sunny | 5 to 15 mph S | 5% |
| Saturday Night | 75°F | Mostly Clear | 10 to 15 mph S | 1% |
| Sunday | 94°F | Sunny | 15 mph S | 1% |
| Sunday Night | 76°F | Mostly Clear | 15 mph S | 2% |
| Monday | 94°F | Sunny | 15 mph SW | 2% |
| Monday Night | 76°F | Mostly Clear | 15 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov) for Riley (39.299, -96.828). Updated through the day.
Growing snapshot for Riley
Last spring frost
Apr 22
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6b
More local growing data for Riley: nearby ZIP 66531 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tuttle Creek Lake, Ks (13.6 mi from Riley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.