North Henderson, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Henderson, a village in Mercer County, Illinois.
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.
7-day forecast for North Henderson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 mph E | 41% |
| Wednesday | 80°F | Showers And Thunderstorms Likely | 5 mph N | 69% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 85% |
| Thursday | 80°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph NE | 64% |
| Thursday Night | 62°F | Mostly Clear | 0 mph | 13% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 14% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph S | 14% |
| Saturday | 85°F | Sunny | 5 mph S | 9% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph S | 30% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 30% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 32% |
Forecast source: National Weather Service (api.weather.gov) for North Henderson (41.090, -90.475). Updated through the day.
Growing snapshot for North Henderson
Last spring frost
Apr 20
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
More local growing data for North Henderson: nearby ZIP 61466 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Aledo
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Eliza
Hamlet
Joy
Keithsburg
Matherville
Millersburg
New Boston
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Reynolds
Seaton
Sherrard
Viola
Windsor
Climate data from the nearest NOAA station, Galesburg, Il (12.4 mi from North Henderson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.