Typical May weather
Chicago
Illinois · May
71° days
51° nights
about 8 rainy days · 14½ hours of daylight
What to pack
- Light jacket
- Umbrella
What May feels like
Patios fill on the first genuinely warm evening and never really empty again. May carries the year's most frequent rain, usually in short bursts between bright stretches, and Memorial Day weekend gives the lakefront path its first properly crowded Saturday.
Rain arrives about 8 days of the month, so keep one flexible day in your plans.
The numbers
| Typical high | 71° |
|---|---|
| Typical low | 51° |
| Days with real rain | 8 |
| Total rain | 4.5 in |
| Humidity | dry air |
| Sunrise / sunset (mid-month) | 5:29 am / 8:03 pm |