Mazon, IL Weather & Growing Conditions
Overnight
61°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a low around 61. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Chance Rain Showers | 15 mph SSW | 42% |
| Wednesday | 64°F | Patchy Drizzle | 15 mph SW | 21% |
| Wednesday Night | 47°F | Patchy Drizzle then Mostly Cloudy | 10 to 15 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph WSW | 30% |
| Thursday Night | 42°F | Chance Rain Showers | 10 mph NW | 45% |
| Friday | 52°F | Partly Sunny | 10 mph NNW | 10% |
| Friday Night | 33°F | Partly Cloudy | 5 to 10 mph NNW | 0% |
| Saturday | 54°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 mph | 1% |
| Sunday | 57°F | Sunny | 0 to 10 mph W | 4% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Monday | 64°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph WSW | 1% |
| Tuesday | 64°F | Sunny | 0 to 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mazon, IL
Last spring frost
Apr 20
First fall frost
Oct 23
Growing season
184 days
Hardiness zone
5b
Explore more for Mazon, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Morris 1 Nw, Il (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.