Plano, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plano, a city in Kendall County, Illinois.
This Afternoon
74°F
Rain Showers Likely
Rain showers likely. Partly sunny. High near 74, with temperatures falling to around 72 in the afternoon. East wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Plano
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Rain Showers Likely | 10 to 15 mph E | 55% |
| Tonight | 63°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph E | 40% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 79% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NNE | 81% |
| Sunday | 70°F | Showers And Thunderstorms | 10 to 15 mph NNE | 81% |
| Sunday Night | 56°F | Rain Showers Likely | 15 mph NE | 67% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 52% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday | 64°F | Chance Rain Showers | 15 mph NE | 25% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 15 mph NNE | 11% |
| Wednesday | 67°F | Partly Sunny | 10 to 15 mph NNE | 5% |
| Wednesday Night | 51°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Plano (41.680, -88.536). Updated through the day.
Growing snapshot for Plano
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5b
More local growing data for Plano: nearby ZIP 60545 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chicago Aurora Muni Ap, Il (6.8 mi from Plano). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.