Harris, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harris, a town in Sullivan County, Missouri.
This Afternoon
86°F
Sunny
Sunny, with a high near 86. Heat index values as high as 97. South southeast wind around 8 mph.
7-day forecast for Harris
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Sunny | 8 mph SSE | 5% |
| Tonight | 71°F | Partly Cloudy | 7 mph SSE | 14% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph N | 74% |
| Sunday | 73°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 53% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 9 mph NE | 53% |
| Monday | 63°F | Chance Rain Showers | 10 mph NE | 52% |
| Monday Night | 54°F | Chance Rain Showers | 6 to 9 mph NNE | 46% |
| Tuesday | 60°F | Mostly Cloudy | 9 mph NE | 10% |
| Tuesday Night | 48°F | Mostly Cloudy | 2 to 6 mph NE | 5% |
| Wednesday | 65°F | Mostly Sunny | 6 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 mph ENE | 3% |
| Thursday | 67°F | Partly Sunny | 1 to 5 mph ENE | 11% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph ENE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Harris (40.306, -93.350). Updated through the day.
Growing snapshot for Harris
Last spring frost
Apr 25
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
6a
More local growing data for Harris: nearby ZIP 64645 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Princeton, Mo (15.4 mi from Harris). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.