Weldon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Weldon, a village in De Witt County, Illinois.
Tonight
68°F
Partly Cloudy
Partly cloudy, with a low around 68. East southeast wind around 10 mph, with gusts as high as 18 mph.
7-day forecast for Weldon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Partly Cloudy | 10 mph ESE | 4% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms | 9 mph S | 21% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 mph S | 26% |
| Sunday | 82°F | Showers And Thunderstorms Likely | 6 to 17 mph NNE | 58% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 14 to 20 mph NE | 63% |
| Monday | 69°F | Showers And Thunderstorms Likely | 16 to 21 mph NE | 68% |
| Monday Night | 54°F | Showers And Thunderstorms Likely | 15 to 21 mph NE | 58% |
| Tuesday | 67°F | Chance Rain Showers | 18 mph NE | 33% |
| Tuesday Night | 52°F | Mostly Cloudy | 10 to 18 mph NNE | 8% |
| Wednesday | 69°F | Partly Sunny | 10 to 14 mph NNE | 3% |
| Wednesday Night | 53°F | Mostly Cloudy | 7 to 14 mph NNE | 3% |
| Thursday | 71°F | Mostly Sunny | 7 to 12 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 6 to 12 mph NNE | 4% |
| Friday | 73°F | Mostly Sunny | 7 to 12 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Weldon (40.122, -88.750). Updated through the day.
Growing snapshot for Weldon
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Weldon: nearby ZIP 61882 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur Ap, Il (19.7 mi from Weldon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.