Modesto, IL Weather & Growing Conditions
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. Southeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 8 mph SE | 13% |
| Saturday | 94°F | Mostly Sunny | 7 mph SW | 7% |
| Saturday Night | 69°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SW | 19% |
| Sunday | 87°F | Chance Rain Showers | 2 to 7 mph NW | 49% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 9 mph NE | 65% |
| Monday | 73°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 65% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 47% |
| Tuesday | 69°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NE | 23% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 9 mph N | 4% |
| Wednesday | 72°F | Mostly Sunny | 8 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 to 7 mph N | 1% |
| Thursday | 73°F | Mostly Sunny | 3 to 7 mph N | 3% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph NE | 4% |
| Friday | 75°F | Mostly Sunny | 3 to 7 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Modesto, IL
Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
205 days
Hardiness zone
6b
Explore more for Modesto, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Virden, Il (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.