Bartlett, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bartlett, a village in Dupage County, Illinois.
This Afternoon
70°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 70. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bartlett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Showers And Thunderstorms Likely | 5 mph SE | 73% |
| Tonight | 64°F | Showers And Thunderstorms | 5 mph E | 100% |
| Sunday | 66°F | Showers And Thunderstorms | 10 to 15 mph NE | 87% |
| Sunday Night | 55°F | Slight Chance Rain Showers | 10 to 15 mph ENE | 22% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 39% |
| Monday Night | 52°F | Slight Chance Rain Showers | 10 to 15 mph ENE | 24% |
| Tuesday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Tuesday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 17% |
| Wednesday | 63°F | Partly Sunny | 10 mph NE | 14% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 12% |
| Friday | 71°F | Partly Sunny | 0 to 5 mph NE | 11% |
| Friday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 3% |
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 Sep 19, 2026.