Preemption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preemption, a community in Mercer County, Illinois.
Today
54°F
Slight Chance Rain Showers
A slight chance of rain showers between 10am and 5pm. Cloudy, with a high near 54. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
7-day forecast for Preemption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Slight Chance Rain Showers | 15 mph SW | 22% |
| Tonight | 46°F | Mostly Cloudy | 15 mph SW | 11% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 42% |
| Thursday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NW | 16% |
| Friday | 50°F | Partly Sunny | 5 to 10 mph N | 5% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 2% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 36°F | Clear | 5 mph W | 1% |
| Monday | 63°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Preemption (41.313, -90.579). Updated through the day.
Growing snapshot for Preemption
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b
More local growing data for Preemption: nearby ZIP 61276 weather · frost dates · planting calendar · Illinois frost dates
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Reynolds
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Sherrard
Viola
Windsor
Climate data from the nearest NOAA station, Moline Quad City Intl Ap, Il (10.6 mi from Preemption). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.