Pontoosuc, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pontoosuc, a village in Hancock County, Illinois.
Today
89°F
Sunny
Sunny, with a high near 89. South wind 5 to 10 mph.
7-day forecast for Pontoosuc
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 5 to 10 mph S | 2% |
| Tonight | 72°F | Slight Chance Showers And Thunderstorms | 5 mph E | 24% |
| Wednesday | 82°F | Chance Showers And Thunderstorms | 5 mph SW | 69% |
| Wednesday Night | 68°F | Showers And Thunderstorms | 5 mph N | 84% |
| Thursday | 81°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph NE | 69% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph E | 10% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph S | 7% |
| Friday Night | 70°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 18% |
| Saturday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 5 mph S | 18% |
| Saturday Night | 74°F | Mostly Clear | 5 to 10 mph S | 7% |
| Sunday | 89°F | Sunny | 10 to 15 mph SW | 7% |
| Sunday Night | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 19% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph SW | 19% |
| Monday Night | 74°F | Chance Showers And Thunderstorms | 10 mph S | 27% |
Forecast source: National Weather Service (api.weather.gov) for Pontoosuc (40.629, -91.211). Updated through the day.
Growing snapshot for Pontoosuc
Last spring frost
Apr 12
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6a
More local growing data for Pontoosuc: nearby ZIP 62358 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Augusta
Basco
Bentley
Bowen
Carthage
Dallas City
Elvaston
Ferris
Hamilton
La Harpe
Nauvoo
Niota
Plymouth
West Point
Climate data from the nearest NOAA station, Ft Madison, Ia (4.4 mi from Pontoosuc). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.