Pontoosuc, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pontoosuc, a village in Hancock County, Illinois.
Tonight
55°F
Mostly Cloudy
Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. Southwest wind 10 to 15 mph.
7-day forecast for Pontoosuc
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Cloudy | 10 to 15 mph SW | 8% |
| Wednesday | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph W | 16% |
| Wednesday Night | 50°F | Mostly Cloudy | 10 to 15 mph SW | 3% |
| Thursday | 56°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph W | 33% |
| Thursday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NW | 23% |
| Friday | 50°F | Partly Sunny | 5 to 10 mph N | 7% |
| Friday Night | 37°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 39°F | Mostly Clear | 0 to 5 mph W | 1% |
| Sunday | 58°F | Sunny | 5 mph W | 1% |
| Sunday Night | 41°F | Clear | 0 to 5 mph W | 0% |
| Monday | 64°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 46°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 65°F | Sunny | 5 mph NW | 0% |
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 Nov 4, 2026.