Newton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newton, a city in Jasper County, Illinois.
Today
95°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 1pm and 2pm. Mostly sunny, with a high near 95. Southwest wind 3 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Newton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 15% |
| Tonight | 71°F | Mostly Cloudy | 6 mph S | 7% |
| Sunday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph WNW | 22% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 10 mph NNE | 52% |
| Monday | 77°F | Showers And Thunderstorms Likely | 12 mph NE | 66% |
| Monday Night | 57°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 9 to 13 mph NE | 60% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 13 mph NNE | 30% |
| Tuesday Night | 55°F | Mostly Cloudy | 7 to 13 mph NNE | 13% |
| Wednesday | 73°F | Mostly Sunny | 10 mph N | 4% |
| Wednesday Night | 55°F | Partly Cloudy | 5 to 10 mph N | 4% |
| Thursday | 75°F | Mostly Sunny | 9 mph N | 3% |
| Thursday Night | 56°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Friday | 76°F | Mostly Sunny | 6 to 9 mph NNE | 2% |
| Friday Night | 54°F | Partly Cloudy | 5 to 8 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Newton (38.987, -88.164). Updated through the day.
Growing snapshot for Newton
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
More local growing data for Newton: nearby ZIP 62448 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Newton, Il (1.6 mi from Newton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.