Meredosia, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Meredosia, a village in Morgan County, Illinois.
This Afternoon
88°F
Mostly Sunny
Mostly sunny, with a high near 88. East wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Meredosia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Mostly Sunny | 6 mph E | 10% |
| Tonight | 71°F | Partly Cloudy | 6 mph ESE | 11% |
| Saturday | 92°F | Partly Sunny | 5 to 8 mph SSW | 8% |
| Saturday Night | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 mph SSW | 34% |
| Sunday | 83°F | Rain Showers Likely | 1 to 8 mph NW | 69% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 to 10 mph NE | 72% |
| Monday | 69°F | Showers And Thunderstorms Likely | 10 mph NE | 72% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 44% |
| Tuesday | 66°F | Chance Rain Showers | 10 mph NNE | 34% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 8 mph NNE | 4% |
| Wednesday | 70°F | Mostly Sunny | 7 mph NNE | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 1 to 5 mph NNE | 0% |
| Thursday | 71°F | Mostly Sunny | 5 mph NNE | 5% |
| Thursday Night | 55°F | Partly Cloudy | 3 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Meredosia (39.831, -90.557). Updated through the day.
Growing snapshot for Meredosia
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
More local growing data for Meredosia: nearby ZIP 62665 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alexander
Chapin
Concord
Franklin
Jacksonville
Lynnville
Merritt
Murrayville
Riggston
South Jacksonville
Waverly
Woodson
Climate data from the nearest NOAA station, Winchester, Il (13.2 mi from Meredosia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.