Fidelity, IL Weather & Growing Conditions
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. Southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 6 mph SW | 2% |
| Sunday | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 8 mph NW | 17% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 75% |
| Monday | 76°F | Chance Rain Showers | 6 to 9 mph NE | 45% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 45% |
| Tuesday | 70°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 29% |
| Tuesday Night | 52°F | Mostly Cloudy | 6 to 12 mph N | 3% |
| Wednesday | 72°F | Partly Sunny | 9 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 8 mph N | 0% |
| Thursday | 75°F | Mostly Sunny | 3 to 7 mph N | 0% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph NE | 15% |
| Friday | 78°F | Slight Chance Rain Showers | 3 to 7 mph NE | 18% |
| Friday Night | 55°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph NE | 18% |
| Saturday | 80°F | Mostly Sunny | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fidelity, IL
Last spring frost
Apr 14
First fall frost
Oct 19
Growing season
187 days
Hardiness zone
6b
Explore more for Fidelity, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Jerseyville 2 Sw, Il (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.