Silvis, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Silvis, a city in Rock Island County, Illinois.
This Afternoon
76°F
Slight Chance Rain Showers
A slight chance of rain showers before 3pm. Mostly sunny, with a high near 76. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Silvis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance Rain Showers | 10 mph E | 17% |
| 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% |
Forecast source: National Weather Service (api.weather.gov) for Silvis (41.498, -90.410). Updated through the day.
Growing snapshot for Silvis
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
5b
More local growing data for Silvis: nearby ZIP 61282 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Le Claire L&D 14, Ia (5.4 mi from Silvis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.