Preemption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preemption, a community in Mercer County, Illinois.
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph.
7-day forecast for Preemption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 5 to 10 mph SW | 4% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 5 mph NE | 60% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 79% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 5 mph N | 79% |
| Thursday | 80°F | Rain Showers Likely then Mostly Sunny | 5 mph NE | 55% |
| Thursday Night | 63°F | Mostly Clear | 0 to 5 mph E | 11% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 7% |
| Friday Night | 66°F | Mostly Clear | 5 mph S | 11% |
| Saturday | 85°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 71°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 32% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 32% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 33% |
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 Aug 4, 2026.