Fidelity, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fidelity, a village in Jersey County, Illinois.
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. Southeast wind around 8 mph.
7-day forecast for Fidelity
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 8 mph SE | 13% |
| Saturday | 96°F | Mostly Sunny | 8 mph SW | 7% |
| Saturday Night | 70°F | Partly Cloudy | 5 mph SW | 9% |
| Sunday | 90°F | Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 7 mph NW | 37% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 9 mph NE | 66% |
| Monday | 76°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 66% |
| Monday Night | 56°F | Showers And Thunderstorms Likely | 7 to 13 mph NE | 60% |
| Tuesday | 70°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph N | 23% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 12 mph N | 4% |
| Wednesday | 73°F | Mostly Sunny | 6 to 9 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 to 8 mph N | 1% |
| Thursday | 74°F | Mostly Sunny | 3 to 8 mph N | 4% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph NE | 3% |
| Friday | 75°F | Mostly Sunny | 3 to 7 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Fidelity (39.155, -90.164). Updated through the day.
Growing snapshot for Fidelity
Last spring frost
Apr 14
First fall frost
Oct 19
Growing season
187 days
More local growing data for Fidelity: nearby ZIP 62030 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jerseyville 2 Sw, Il (10.2 mi from Fidelity). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.