Fidelity, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fidelity, a village in Jersey County, Illinois.
Tonight
55°F
Rain
Rain and a slight chance of thunderstorms before 3am, then a slight chance of drizzle. Cloudy, with a low around 55. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
7-day forecast for Fidelity
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Rain | 10 to 17 mph S | 82% |
| Wednesday | 61°F | Slight Chance Drizzle then Mostly Cloudy | 9 to 15 mph SW | 12% |
| Wednesday Night | 41°F | Partly Cloudy | 7 mph SW | 0% |
| Thursday | 63°F | Sunny | 7 to 12 mph W | 3% |
| Thursday Night | 41°F | Mostly Cloudy then Slight Chance T-storms | 6 mph NW | 17% |
| Friday | 57°F | Mostly Cloudy | 7 to 10 mph NW | 5% |
| Friday Night | 35°F | Mostly Cloudy | 2 to 7 mph N | 2% |
| Saturday | 55°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 61°F | Sunny | 2 to 7 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 4% |
| Monday | 65°F | Sunny | 3 to 8 mph SW | 2% |
| Monday Night | 38°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 67°F | Sunny | 6 mph W | 1% |
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 Nov 4, 2026.