Sullivan, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sullivan, a city in Franklin County, Missouri.
This Afternoon
72°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 72, with temperatures falling to around 65 in the afternoon. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
7-day forecast for Sullivan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Light Rain | 14 mph S | 79% |
| Tonight | 50°F | Light Rain Likely then Chance Rain Showers | 6 to 10 mph SW | 63% |
| Wednesday | 61°F | Mostly Cloudy | 6 to 10 mph W | 3% |
| Wednesday Night | 41°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 65°F | Sunny | 3 to 7 mph W | 6% |
| Thursday Night | 41°F | Slight Chance T-storms then Mostly Cloudy | 5 mph NW | 15% |
| Friday | 56°F | Partly Sunny | 3 to 7 mph NW | 7% |
| Friday Night | 37°F | Mostly Cloudy | 2 mph N | 4% |
| Saturday | 56°F | Partly Sunny | 2 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NW | 2% |
| Sunday | 62°F | Sunny | 5 mph W | 8% |
| Sunday Night | 35°F | Mostly Clear | 3 mph W | 3% |
| Monday | 66°F | Sunny | 6 mph SW | 2% |
| Monday Night | 40°F | Mostly Clear | 3 mph SW | 1% |
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 Nov 4, 2026.