Oglesby, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oglesby, a city in Lasalle County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind around 5 mph, with gusts as high as 15 mph.
7-day forecast for Oglesby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 mph SSW | 1% |
| Tonight | 68°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph S | 18% |
| Wednesday | 81°F | Slight Chance Showers And Thunderstorms | 5 mph WSW | 56% |
| Wednesday Night | 66°F | Showers And Thunderstorms | 0 to 5 mph N | 87% |
| Thursday | 80°F | Chance Showers And Thunderstorms | 0 to 5 mph ESE | 66% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 26% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SSE | 9% |
| Friday Night | 65°F | Mostly Clear | 0 mph | 9% |
| Saturday | 85°F | Mostly Sunny | 0 to 5 mph SW | 8% |
| Saturday Night | 71°F | Mostly Clear | 5 mph SSW | 8% |
| Sunday | 87°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 28% |
| Monday | 87°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 28% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 37% |
Forecast source: National Weather Service (api.weather.gov) for Oglesby (41.293, -89.071). Updated through the day.
Growing snapshot for Oglesby
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b
More local growing data for Oglesby: nearby ZIP 61348 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cedar Point
Dana
Dayton
Earlville
Grand Ridge
Harding
Kangley
LaSalle
Leland
Leonore
Lostant
Marseilles
Mendota
Millington
Naplate
Newark
North Utica
Ottawa
Peru
Ransom
Rutland
Seneca
Serena
Sheridan
Streator
Tonica
Triumph
Troy Grove
Wedron
Wenona
Climate data from the nearest NOAA station, Peru, Il (5.8 mi from Oglesby). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.