Pleasant Plains, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pleasant Plains, a village in Sangamon County, Illinois.
Tonight
52°F
Rain
Rain before 3am, then a slight chance of rain showers between 3am and 5am. Cloudy, with a low around 52. South southwest wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Pleasant Plains
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Rain | 10 to 15 mph SSW | 88% |
| Wednesday | 59°F | Mostly Cloudy | 15 mph SW | 10% |
| Wednesday Night | 43°F | Mostly Cloudy | 10 mph SW | 1% |
| Thursday | 60°F | Mostly Sunny | 9 to 13 mph WSW | 5% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 7 mph NW | 22% |
| Friday | 55°F | Mostly Cloudy | 6 to 10 mph NNW | 11% |
| Friday Night | 36°F | Mostly Cloudy | 1 to 8 mph N | 3% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NW | 2% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 60°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 35°F | Mostly Clear | 6 mph W | 4% |
| Monday | 64°F | Sunny | 3 to 10 mph SW | 1% |
| Monday Night | 39°F | Mostly Clear | 7 mph WSW | 1% |
| Tuesday | 66°F | Sunny | 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Pleasant Plains (39.875, -89.918). Updated through the day.
Growing snapshot for Pleasant Plains
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
6a
More local growing data for Pleasant Plains: nearby ZIP 62677 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Auburn
Berlin
Buffalo
Cantrall
Chatham
Curran
Dawson
Divernon
Grandview
Illiopolis
Jerome
Leland Grove
Loami
Mechanicsburg
New Berlin
Pawnee
Riverton
Rochester
Sherman
Southern View
Spaulding
Springfield
Thayer
Williamsville
Climate data from the nearest NOAA station, Athens 4Sw, Il (6.8 mi from Pleasant Plains). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.