Weldon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Weldon, a village in De Witt County, Illinois.
This Afternoon
85°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 85. South southeast wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Weldon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Slight Chance Showers And Thunderstorms | 7 mph SSE | 20% |
| Tonight | 68°F | Mostly Cloudy | 3 to 7 mph SSW | 13% |
| Sunday | 81°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 to 14 mph NNE | 33% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 46% |
| Monday | 68°F | Rain Showers Likely | 12 to 18 mph ENE | 66% |
| Monday Night | 54°F | Chance Rain Showers | 14 to 18 mph ENE | 48% |
| Tuesday | 66°F | Chance Rain Showers | 17 mph NE | 48% |
| Tuesday Night | 52°F | Mostly Cloudy | 9 to 17 mph NNE | 11% |
| Wednesday | 68°F | Partly Sunny | 12 to 15 mph NNE | 6% |
| Wednesday Night | 53°F | Partly Cloudy | 7 to 15 mph NNE | 0% |
| Thursday | 71°F | Partly Sunny | 7 to 10 mph NNE | 1% |
| Thursday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 74°F | Partly Sunny | 7 to 12 mph NNE | 4% |
| Friday Night | 54°F | Partly Cloudy | 6 to 10 mph NE | 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.