Meredosia, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Meredosia, a village in Morgan County, Illinois.
Today
88°F
Sunny
Sunny, with a high near 88. South wind 2 to 6 mph.
7-day forecast for Meredosia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 2 to 6 mph S | 0% |
| Tonight | 69°F | Partly Cloudy | 5 mph SSE | 6% |
| Wednesday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph S | 39% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph E | 79% |
| Thursday | 83°F | Showers And Thunderstorms | 3 mph S | 79% |
| Thursday Night | 65°F | Partly Cloudy | 2 mph ESE | 14% |
| Friday | 85°F | Mostly Sunny | 1 mph WNW | 7% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 1 mph S | 25% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms then Sunny | 1 to 5 mph SSW | 24% |
| Saturday Night | 71°F | Mostly Clear | 3 to 7 mph SSW | 6% |
| Sunday | 90°F | Sunny | 7 to 10 mph SSW | 3% |
| Sunday Night | 72°F | Mostly Clear | 9 mph SSW | 13% |
| Monday | 91°F | Mostly Sunny | 6 to 10 mph SSW | 13% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 9 mph SSW | 25% |
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 Aug 4, 2026.