Ullin, IL Weather & Growing Conditions
This Afternoon
65°F
Partly Sunny
Partly sunny. High near 65, with temperatures falling to around 59 in the afternoon. West southwest wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Partly Sunny | 5 to 9 mph WSW | 0% |
| Tonight | 45°F | Partly Cloudy then Patchy Fog | 1 to 5 mph SW | 0% |
| Thursday | 66°F | Patchy Fog then Sunny | 1 to 7 mph SW | 1% |
| Thursday Night | 43°F | Partly Cloudy | 2 mph NW | 0% |
| Friday | 58°F | Partly Sunny | 3 to 9 mph N | 0% |
| Friday Night | 33°F | Mostly Clear | 2 to 6 mph N | 0% |
| Saturday | 55°F | Sunny | 5 mph N | 0% |
| Saturday Night | 31°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 59°F | Sunny | 2 mph NNW | 0% |
| Sunday Night | 32°F | Mostly Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 2 mph SW | 0% |
| Monday Night | 35°F | Clear | 0 mph | 1% |
| Tuesday | 65°F | Sunny | 0 to 3 mph WNW | 0% |
| Tuesday Night | 38°F | Mostly Clear | 1 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ullin, IL
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7a
Explore more for Ullin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Grand Chain Dam 53, Il (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.