Oglesby, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oglesby, a city in Lasalle County, Illinois.
Tonight
66°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Oglesby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph ESE | 26% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 58% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 5 mph WNW | 79% |
| Sunday | 72°F | Showers And Thunderstorms | 10 to 15 mph NE | 79% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 15 mph NE | 71% |
| Monday | 66°F | Showers And Thunderstorms Likely | 15 mph ENE | 63% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Tuesday | 65°F | Chance Rain Showers | 10 to 15 mph NE | 28% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 7% |
| Wednesday | 68°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 10 mph NNE | 5% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph NNE | 2% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NNE | 3% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NNE | 3% |
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 Sep 19, 2026.