Dixon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dixon, a city in Lee County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.
7-day forecast for Dixon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 to 10 mph SW | 5% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 74% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph WSW | 74% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 5 mph NNE | 79% |
| Thursday | 78°F | Chance Rain Showers | 0 to 5 mph NE | 43% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 14% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph SSE | 9% |
| Friday Night | 62°F | Mostly Clear | 0 mph | 9% |
| Saturday | 83°F | Sunny | 0 to 5 mph SSW | 9% |
| Saturday Night | 68°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 mph SSW | 19% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph SSW | 19% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 38% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 35% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph WNW | 41% |
Forecast source: National Weather Service (api.weather.gov) for Dixon (41.845, -89.477). Updated through the day.
Growing snapshot for Dixon
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
More local growing data for Dixon: nearby ZIP 61021 weather · frost dates · planting calendar · Illinois frost dates
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West Brooklyn
Climate data from the nearest NOAA station, Dixon 1W, Il (1.9 mi from Dixon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.