Magnolia, IL Weather & Growing Conditions
This Afternoon
71°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 71. South wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Showers And Thunderstorms | 17 mph S | 88% |
| Tonight | 54°F | Showers And Thunderstorms | 14 to 17 mph S | 97% |
| Wednesday | 58°F | Chance Rain Showers then Mostly Cloudy | 16 mph SW | 28% |
| Wednesday Night | 45°F | Mostly Cloudy | 9 to 14 mph SW | 9% |
| Thursday | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 13 mph WSW | 17% |
| Thursday Night | 42°F | Chance Rain Showers | 3 to 7 mph NW | 32% |
| Friday | 53°F | Slight Chance Rain Showers | 9 mph N | 19% |
| Friday Night | 35°F | Partly Cloudy | 1 to 7 mph NNW | 3% |
| Saturday | 52°F | Mostly Sunny | 1 to 5 mph WNW | 3% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph WSW | 3% |
| Sunday | 58°F | Sunny then Slight Chance Rain Showers | 2 to 8 mph W | 15% |
| Sunday Night | 34°F | Mostly Clear | 2 to 6 mph W | 5% |
| Monday | 63°F | Sunny | 3 to 10 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Magnolia, IL
Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
5b
Explore more for Magnolia, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Hennepin, Il (11.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.