North Henderson, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Henderson, a village in Mercer County, Illinois.
Tonight
68°F
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2am. Partly cloudy. Low around 68, with temperatures rising to around 70 overnight. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
7-day forecast for North Henderson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 mph SE | 42% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 53% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph N | 76% |
| Sunday | 73°F | Showers And Thunderstorms Likely | 5 to 15 mph NE | 76% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 15 mph NE | 67% |
| Monday | 64°F | Showers And Thunderstorms Likely | 15 mph NE | 64% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 49% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NE | 5% |
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
Alexis
Cable
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 Sep 19, 2026.