Pleasant Plains, IL Weather & Growing Conditions
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 8 mph, with gusts as high as 16 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 8 mph SE | 9% |
| Saturday | 92°F | Partly Sunny | 8 mph SSW | 10% |
| Saturday Night | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 mph SSW | 32% |
| Sunday | 85°F | Rain Showers Likely | 3 to 10 mph NNW | 59% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 70% |
| Monday | 71°F | Showers And Thunderstorms Likely | 12 mph NE | 70% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 46% |
| Tuesday | 68°F | Chance Rain Showers then Mostly Cloudy | 12 mph NNE | 32% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 12 mph NNE | 4% |
| Wednesday | 71°F | Partly Sunny | 6 to 9 mph NNE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 8 mph NNE | 0% |
| Thursday | 72°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Thursday Night | 55°F | Partly Cloudy | 2 to 6 mph NNE | 4% |
| Friday | 74°F | Mostly Sunny | 3 to 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pleasant Plains, IL
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
6a
Explore more for Pleasant Plains, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Athens 4Sw, Il (6.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.