Brimfield, IL Weather & Growing Conditions
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. South wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 3 to 7 mph S | 0% |
| Tonight | 67°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSE | 24% |
| Wednesday | 83°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 51% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 2 to 6 mph N | 86% |
| Thursday | 81°F | Showers And Thunderstorms | 5 mph S | 75% |
| Thursday Night | 64°F | Partly Cloudy | 0 to 3 mph E | 11% |
| Friday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 mph S | 16% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 mph SE | 16% |
| Saturday | 86°F | Sunny | 2 to 6 mph SSW | 11% |
| Saturday Night | 71°F | Mostly Clear | 3 to 8 mph S | 9% |
| Sunday | 88°F | Sunny | 8 to 12 mph SSW | 7% |
| Sunday Night | 71°F | Partly Cloudy then Chance Showers And Thunderstorms | 7 to 10 mph S | 27% |
| Monday | 89°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 10 mph SSW | 27% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brimfield, IL
Last spring frost
Apr 22
First fall frost
Oct 14
Growing season
174 days
Hardiness zone
5b
Explore more for Brimfield, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Princeville, Il (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.