Dixon, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dixon, a city in Lee County, Illinois.
Tonight
64°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Dixon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph ESE | 46% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 5 to 10 mph SSE | 83% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph N | 79% |
| Sunday | 69°F | Showers And Thunderstorms | 10 to 15 mph NE | 77% |
| Sunday Night | 54°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 61% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 52% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Wednesday | 66°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Wednesday Night | 49°F | Mostly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph NNE | 4% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NNE | 5% |
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 Sep 19, 2026.