Hillcrest, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillcrest, a village in Ogle County, Illinois.
Tonight
62°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 62. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Hillcrest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph ESE | 51% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 5 to 15 mph SE | 87% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 79% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 15 mph NE | 77% |
| Sunday Night | 53°F | Rain Showers Likely | 15 mph NE | 61% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 48% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 15 mph NE | 9% |
| Wednesday | 66°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Wednesday Night | 49°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Thursday | 69°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 71°F | Mostly Sunny | 0 to 10 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Hillcrest (41.967, -89.063). Updated through the day.
Growing snapshot for Hillcrest
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
168 days
Hardiness zone
5b
More local growing data for Hillcrest: nearby ZIP 61068 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Baileyville
Byron
Creston
Davis Junction
Forreston
Holcomb
Kings
Leaf River
Monroe Center
Mount Morris
Oregon
Polo
Rochelle
Stillman Valley
Climate data from the nearest NOAA station, Rochelle, Il (2.7 mi from Hillcrest). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.