Westfield, IL Weather & Growing Conditions
This Afternoon
91°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly sunny, with a high near 91. West southwest wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Slight Chance Showers And Thunderstorms | 6 mph WSW | 18% |
| Tonight | 70°F | Mostly Cloudy | 3 to 7 mph SSE | 14% |
| Sunday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 10 mph NW | 26% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 42% |
| Monday | 73°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 65% |
| Monday Night | 56°F | Chance Rain Showers | 13 mph NE | 47% |
| Tuesday | 69°F | Chance Rain Showers | 14 mph NE | 33% |
| Tuesday Night | 54°F | Mostly Cloudy | 7 to 14 mph NNE | 13% |
| Wednesday | 70°F | Partly Sunny | 10 mph N | 13% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph N | 1% |
| Thursday | 73°F | Partly Sunny | 8 mph N | 1% |
| Thursday Night | 56°F | Mostly Cloudy | 3 to 7 mph NNE | 3% |
| Friday | 75°F | Partly Sunny | 5 to 8 mph NNE | 11% |
| Friday Night | 54°F | Partly Cloudy | 7 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Westfield, IL
Last spring frost
Apr 15
First fall frost
Oct 23
Growing season
187 days
Hardiness zone
6a
Explore more for Westfield, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Charleston, Il (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.