Fox River Grove, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fox River Grove, a village in Mchenry County, Illinois.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. South southwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Fox River Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 10 mph SSW | 1% |
| Tonight | 67°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 50% |
| Wednesday | 78°F | Showers And Thunderstorms Likely | 5 mph WSW | 74% |
| Wednesday Night | 62°F | Showers And Thunderstorms | 0 to 5 mph WNW | 81% |
| Thursday | 78°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 55% |
| Thursday Night | 60°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph NNE | 16% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SSW | 3% |
| Friday Night | 63°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 83°F | Mostly Sunny | 0 to 5 mph SW | 11% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 20% |
| Sunday | 84°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 45% |
| Monday | 83°F | Chance Showers And Thunderstorms | 5 mph SSW | 45% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 5 mph W | 46% |
Forecast source: National Weather Service (api.weather.gov) for Fox River Grove (42.195, -88.215). Updated through the day.
Growing snapshot for Fox River Grove
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
5b
More local growing data for Fox River Grove: nearby ZIP 60021 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Barrington 3Sw, Il (6.1 mi from Fox River Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.