Oglesby, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oglesby, a city in Lasalle County, Illinois.
Overnight
58°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Oglesby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Slight Chance Rain Showers | 15 mph SSW | 16% |
| Wednesday | 61°F | Patchy Drizzle | 15 mph SW | 15% |
| Wednesday Night | 47°F | Patchy Drizzle then Mostly Cloudy | 10 to 15 mph SW | 12% |
| Thursday | 57°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph WSW | 30% |
| Thursday Night | 42°F | Chance Rain Showers | 10 mph NW | 40% |
| Friday | 51°F | Partly Sunny | 10 mph NNW | 6% |
| Friday Night | 32°F | Partly Cloudy | 0 to 10 mph NNW | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 mph | 1% |
| Sunday | 57°F | Sunny | 0 to 10 mph W | 3% |
| Sunday Night | 34°F | Clear | 0 to 5 mph W | 0% |
| Monday | 62°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph WSW | 1% |
| Tuesday | 63°F | Sunny | 0 to 5 mph WNW | 1% |
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 Nov 4, 2026.