Jewett, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jewett, a village in Cumberland County, Illinois.
Overnight
60°F
Chance Light Rain
A chance of rain. Cloudy, with a low around 60. South wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Jewett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Chance Light Rain | 13 mph S | 51% |
| Wednesday | 64°F | Chance Light Rain then Patchy Drizzle | 9 to 13 mph SW | 28% |
| Wednesday Night | 46°F | Patchy Drizzle then Mostly Cloudy | 9 mph WSW | 10% |
| Thursday | 63°F | Mostly Sunny | 8 to 13 mph WSW | 2% |
| Thursday Night | 44°F | Mostly Cloudy | 5 mph WNW | 1% |
| Friday | 56°F | Partly Sunny | 5 to 12 mph NNW | 3% |
| Friday Night | 35°F | Partly Cloudy | 3 to 8 mph NNW | 0% |
| Saturday | 54°F | Sunny | 6 mph NNW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 59°F | Sunny | 2 to 8 mph WNW | 2% |
| Sunday Night | 33°F | Clear | 3 mph W | 0% |
| Monday | 63°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 38°F | Clear | 3 mph SW | 0% |
| Tuesday | 67°F | Sunny | 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Jewett (39.208, -88.243). Updated through the day.
Growing snapshot for Jewett
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
More local growing data for Jewett: nearby ZIP 62436 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Newton, Il (13.8 mi from Jewett). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.