Ottawa, KS Weather & Growing Conditions
Overnight
67°F
Partly Cloudy
Partly cloudy, with a low around 67. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Partly Cloudy | 5 mph SE | 1% |
| Tuesday | 93°F | Mostly Sunny | 5 to 10 mph S | 3% |
| Tuesday Night | 72°F | Partly Cloudy | 5 mph SE | 13% |
| Wednesday | 89°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 33% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 5 mph N | 65% |
| Thursday | 87°F | Showers And Thunderstorms Likely then Partly Sunny | 0 to 5 mph NE | 65% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 49% |
| Friday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 49% |
| Friday Night | 70°F | Mostly Clear | 5 mph S | 11% |
| Saturday | 92°F | Sunny | 5 to 10 mph S | 11% |
| Saturday Night | 74°F | Mostly Clear | 10 mph S | 1% |
| Sunday | 94°F | Sunny | 10 to 15 mph S | 1% |
| Sunday Night | 75°F | Mostly Clear | 10 mph S | 1% |
| Monday | 95°F | Sunny | 10 to 15 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ottawa, KS
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6b
Explore more for Ottawa, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Ottawa, Ks (0.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.