Highland, IL Weather & Growing Conditions
Overnight
73°F
Clear
Clear, with a low around 73. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Clear | 5 mph S | 5% |
| Saturday | 96°F | Mostly Sunny | 2 to 7 mph SW | 6% |
| Saturday Night | 72°F | Partly Cloudy | 5 mph SW | 4% |
| Sunday | 92°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 23% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 6 to 10 mph NE | 55% |
| Monday | 78°F | Showers And Thunderstorms Likely | 7 to 13 mph NE | 67% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 7 to 13 mph NE | 62% |
| Tuesday | 71°F | Slight Chance Rain Showers then Partly Sunny | 13 mph NE | 19% |
| Tuesday Night | 54°F | Mostly Cloudy | 5 to 13 mph N | 9% |
| Wednesday | 74°F | Mostly Sunny | 7 to 10 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 9 mph N | 0% |
| Thursday | 76°F | Mostly Sunny | 3 to 9 mph N | 1% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 8 mph NE | 3% |
| Friday | 78°F | Mostly Sunny | 3 to 8 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Highland, IL
Last spring frost
Apr 6
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
Explore more for Highland, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Carlyle Rsvr, Il (18.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.