Sullivan, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sullivan, a city in Franklin County, Missouri.
Overnight
71°F
Mostly Clear
Mostly clear. Low around 71, with temperatures rising to around 75 overnight. Southwest wind around 7 mph.
7-day forecast for Sullivan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Mostly Clear | 7 mph SW | 2% |
| Saturday | 95°F | Mostly Sunny | 3 to 7 mph SW | 2% |
| Saturday Night | 71°F | Partly Cloudy | 5 mph SW | 4% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph W | 30% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 3 mph N | 73% |
| Monday | 76°F | Showers And Thunderstorms Likely | 6 mph N | 73% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 6 mph N | 55% |
| Tuesday | 68°F | Slight Chance Rain Showers then Partly Sunny | 8 mph N | 23% |
| Tuesday Night | 52°F | Mostly Cloudy | 2 to 6 mph N | 2% |
| Wednesday | 70°F | Mostly Sunny | 6 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph NE | 0% |
| Thursday | 73°F | Mostly Sunny | 5 mph NE | 3% |
| Thursday Night | 55°F | Partly Cloudy | 3 mph NE | 5% |
| Friday | 73°F | Slight Chance Rain Showers | 5 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Sullivan (38.213, -91.164). Updated through the day.
Growing snapshot for Sullivan
Last spring frost
Apr 11
First fall frost
Oct 23
Growing season
194 days
Hardiness zone
6b
More local growing data for Sullivan: nearby ZIP 63079 weather · frost dates · planting calendar · Missouri frost dates
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Washington
Climate data from the nearest NOAA station, Union, Mo (13.4 mi from Sullivan). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.