Plainville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainville, a village in Adams County, Illinois.
This Afternoon
89°F
Sunny
Sunny, with a high near 89. East wind around 6 mph.
7-day forecast for Plainville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Sunny | 6 mph E | 14% |
| Tonight | 72°F | Mostly Clear | 6 mph SE | 13% |
| Saturday | 93°F | Partly Sunny | 5 to 8 mph SW | 7% |
| Saturday Night | 70°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SW | 31% |
| Sunday | 82°F | Showers And Thunderstorms Likely | 3 to 8 mph NW | 66% |
| Sunday Night | 62°F | Showers And Thunderstorms Likely | 7 to 10 mph NE | 72% |
| Monday | 69°F | Showers And Thunderstorms Likely | 10 mph NE | 72% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 48% |
| Tuesday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NE | 23% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 8 mph N | 5% |
| Wednesday | 69°F | Mostly Sunny | 7 mph N | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 1% |
| Thursday | 71°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 57°F | Partly Cloudy | 3 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Plainville (39.785, -91.182). Updated through the day.
Growing snapshot for Plainville
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6a
More local growing data for Plainville: nearby ZIP 62365 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Adams
Bloomfield
Burton
Camp Point
Clayton
Coatsburg
Columbus
Fall Creek
Fowler
Golden
Kingston
La Prairie
Liberty
Lima
Loraine
Marcelline
Mendon
Paloma
Payson
Quincy
Richfield
Ursa
Climate data from the nearest NOAA station, Quincy Rgnl Ap, Il (9.8 mi from Plainville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.