Greenwood, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenwood, a village in Mchenry County, Illinois.
Tonight
61°F
Showers And Thunderstorms Likely
Rain showers likely before 11pm, then showers and thunderstorms likely between 11pm and 1am, then patchy fog and showers and thunderstorms between 1am and 4am, then patchy fog and showers and thunderstorms. Cloudy. Low around 61, with temperatures rising to around 64 overnight. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Greenwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Showers And Thunderstorms Likely | 5 to 10 mph ENE | 90% |
| Sunday | 65°F | Rain Showers | 10 to 15 mph NE | 81% |
| Sunday Night | 54°F | Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Monday | 63°F | Chance Rain Showers | 15 mph ENE | 34% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph ENE | 33% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 11% |
| Wednesday | 63°F | Partly Sunny | 5 to 10 mph NE | 11% |
| Wednesday Night | 51°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph NNE | 12% |
| Friday | 70°F | Partly Sunny | 0 to 5 mph NE | 9% |
| Friday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Saturday | 71°F | Mostly Sunny | 0 to 5 mph ENE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Greenwood (42.395, -88.384). Updated through the day.
Growing snapshot for Greenwood
Last spring frost
May 1
First fall frost
Oct 11
Growing season
162 days
Hardiness zone
5b
More local growing data for Greenwood: nearby ZIP 60097 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Mc Henry -Wg Stratton L&D, Il (8.6 mi from Greenwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.