Amboy, IL Weather & Growing Conditions
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 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph ESE | 38% |
| Saturday | 80°F | Showers And Thunderstorms Likely | 5 to 10 mph SSE | 76% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 mph N | 79% |
| Sunday | 69°F | Showers And Thunderstorms | 10 to 15 mph NE | 77% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 15 mph NE | 65% |
| Monday | 65°F | Rain Showers Likely | 15 mph ENE | 55% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Tuesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Wednesday | 67°F | Partly Sunny | 5 to 10 mph NNE | 4% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
| Thursday | 70°F | Mostly Sunny | 5 mph NNE | 4% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Amboy, IL
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
Explore more for Amboy, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Dixon 1W, Il (12.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.