Amboy, IL Weather & Growing Conditions
Today
59°F
Patchy Drizzle
Patchy drizzle and isolated rain showers. Mostly cloudy. High near 59, with temperatures falling to around 53 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Patchy Drizzle | 15 mph SW | 15% |
| Tonight | 46°F | Patchy Drizzle | 15 mph SW | 15% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 35% |
| Thursday Night | 40°F | Chance Rain Showers then Mostly Cloudy | 10 mph NNW | 25% |
| Friday | 49°F | Partly Sunny | 10 mph N | 5% |
| Friday Night | 31°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph W | 1% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 4% |
| Sunday Night | 34°F | Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WSW | 0% |
| Tuesday | 62°F | Sunny | 0 to 5 mph WNW | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 0% |
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 Nov 4, 2026.