Bartlett, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bartlett, a village in Dupage County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for Bartlett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Tonight | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SW | 39% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 5 mph WSW | 73% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph WNW | 86% |
| Thursday | 78°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 62% |
| Thursday Night | 61°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 21% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SSW | 4% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 15% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SW | 20% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 42% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 42% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 46% |
Forecast source: National Weather Service (api.weather.gov) for Bartlett (41.961, -88.178). Updated through the day.
Growing snapshot for Bartlett
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5b
More local growing data for Bartlett: nearby ZIP 60103 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Streamwood, Il (3.7 mi from Bartlett). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.