Maquon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Maquon, a village in Knox County, Illinois.
Tonight
68°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4am and 5am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East southeast wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
7-day forecast for Maquon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 8 mph ESE | 26% |
| Saturday | 85°F | Patchy Fog then Mostly Cloudy | 5 to 8 mph S | 27% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 3 to 7 mph ENE | 68% |
| Sunday | 76°F | Showers And Thunderstorms Likely | 2 to 13 mph NNE | 73% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 69% |
| Monday | 66°F | Showers And Thunderstorms Likely | 14 mph ENE | 69% |
| Monday Night | 53°F | Chance Rain Showers | 8 to 14 mph NE | 45% |
| Tuesday | 65°F | Chance Rain Showers | 12 mph NE | 29% |
| Tuesday Night | 50°F | Mostly Cloudy | 3 to 9 mph NNE | 4% |
| Wednesday | 68°F | Partly Sunny | 5 to 8 mph NNE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 1 to 5 mph NNE | 2% |
| Thursday | 70°F | Mostly Sunny | 1 to 5 mph NNE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 3 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 1 to 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Maquon (40.798, -90.163). Updated through the day.
Growing snapshot for Maquon
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
5b
More local growing data for Maquon: nearby ZIP 61458 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Abingdon
Altona
East Galesburg
Galesburg
Gilson
Henderson
Knoxville
Nekoma
Oak Run
Oneida
Rio
St. Augustine
Victoria
Wataga
Williamsfield
Yates City
Climate data from the nearest NOAA station, Knoxville, Il (10 mi from Maquon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.