Lockport, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lockport, a city in Will County, Illinois.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. South wind around 5 mph.
7-day forecast for Lockport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 6% |
| Tuesday Night | 67°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph S | 16% |
| Wednesday | 80°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 59% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 5 mph WSW | 89% |
| Thursday | 79°F | Chance Showers And Thunderstorms | 5 mph SSE | 77% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 35% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 9% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 11% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 16% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 16% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 10 mph SSW | 38% |
| Monday | 85°F | Chance Rain Showers | 5 to 10 mph SSW | 38% |
Forecast source: National Weather Service (api.weather.gov) for Lockport (41.591, -88.030). Updated through the day.
Growing snapshot for Lockport
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6a
More local growing data for Lockport: nearby ZIP 60441 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Romeoville Wfo, Il (1.9 mi from Lockport). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.