Hillcrest, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillcrest, a village in Ogle County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South southwest wind around 10 mph.
7-day forecast for Hillcrest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 10 mph SSW | 2% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 mph SW | 63% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph WSW | 74% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 5 mph NNW | 80% |
| Thursday | 79°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 44% |
| Thursday Night | 59°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 18% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SSE | 13% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SSW | 13% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 9% |
| Saturday Night | 68°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 19% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SW | 19% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 39% |
| Monday | 85°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 37% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 10 mph WNW | 42% |
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 Aug 4, 2026.