Preemption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preemption, a community in Mercer County, Illinois.
This Afternoon
80°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 78 in the afternoon. South wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Preemption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 25% |
| Tonight | 66°F | Showers And Thunderstorms | 5 mph SW | 85% |
| Sunday | 70°F | Showers And Thunderstorms Likely | 5 to 15 mph NE | 73% |
| Sunday Night | 58°F | Chance Rain Showers | 15 mph NE | 52% |
| Monday | 63°F | Rain Showers Likely | 15 mph NE | 69% |
| Monday Night | 54°F | Rain Showers Likely | 10 to 15 mph NE | 68% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 54% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 64°F | Partly Sunny | 10 mph NE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 10 mph NE | 4% |
| Thursday | 67°F | Partly Sunny | 5 mph NE | 4% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Friday | 71°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NE | 15% |
| Friday Night | 56°F | Mostly Cloudy | 5 mph NE | 7% |
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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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 Sep 20, 2026.