Penfield, IL Weather & Growing Conditions
Today
82°F
Mostly Sunny
Mostly sunny, with a high near 82. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 5 mph S | 0% |
| Tonight | 65°F | Partly Cloudy | 3 mph SSE | 0% |
| Wednesday | 84°F | Mostly Sunny | 2 to 6 mph SSW | 8% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 5 mph S | 74% |
| Thursday | 81°F | Showers And Thunderstorms | 5 mph SSW | 77% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms | 3 mph S | 46% |
| Friday | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 mph S | 21% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 1 mph SSW | 25% |
| Saturday | 84°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph SSW | 16% |
| Saturday Night | 69°F | Mostly Clear | 2 to 7 mph SSW | 12% |
| Sunday | 86°F | Sunny | 7 to 10 mph SSW | 9% |
| Sunday Night | 70°F | Partly Cloudy | 9 mph SSW | 13% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 20% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 9 mph SW | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Penfield, IL
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
6a
Explore more for Penfield, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Rantoul, Il (10.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.