Silvis, IL Weather & Growing Conditions
Tonight
67°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy. Low around 67, with temperatures rising to around 69 overnight. East wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph E | 51% |
| Saturday | 83°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph S | 68% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph N | 80% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 80% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 58% |
| Monday | 65°F | Rain Showers Likely | 15 mph NE | 58% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 51% |
| Tuesday | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 45% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Silvis, IL
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
5b
Explore more for Silvis, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Le Claire L&D 14, Ia (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.