Joliet, IL weather in June
June in Joliet: warm, with frequent rain. Highs 80°F, lows 60°F, about 11 days with rain. A good month for most outdoor plans.
- Normal high
- 80°F
- Normal low
- 60°F
- Wet days
- 11
- 4.3 in total
- Muggy days
- 6
- dew point 65°F+
How June changes from start to finish
| June 1 | June 30 | |
|---|---|---|
| Normal high | 76°F | 83°F |
| Normal low | 55°F | 64°F |
| Chance of a wet day | 38% | 32% |
| Sunrise / sunset | 5:20 am / 8:19 pm | 5:21 am / 8:30 pm |
| Daylight | 15.0 h | 15.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical June day
- 6 am66°Fdew point 58°F
- 9 am73°Fdew point 59°F
- Noon77°Fdew point 58°F
- 3 pm78°Fdew point 58°F
- 6 pm75°Fdew point 57°F
- 9 pm70°Fdew point 57°F
NOAA hourly normals (local standard time) from Chicago Midway Airport (25 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F10 of 30
- Hot dayshigh 90°F or more4 of 30
- Muggy daysdaily mean dew point 65°F or more6 of 30
- Wet daysat least 0.01 in of rain or melted snow11 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per June, counted from daily records for each year 1991-2020.
Rain in June
Normal precipitation is 4.3 in; a dry June brings about 1.9 in and a wet one about 6.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How June varies from year to year
- Warmest June, 1991-20202005: average high 86°F
- Coolest June2015: average high 77°F
- Wettest June1993: 11.7 in
- Driest June2005: 1.1 in
- Highest reading99°F (June 20, 1991)
- Lowest reading38°F (June 5, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
June compared with May and July
| May | June | July | |
|---|---|---|---|
| Normal high | 71°F | 80°F | 84°F |
| Normal low | 49°F | 60°F | 64°F |
| Wet days | 12 | 11 | 9 |
| Comfortable days | 15 | 10 | 6 |
| Daylight | 14.5 h | 15.1 h | 14.8 h |
Highs change by +9°F from May and +4°F into July.
Nearby alternatives in June
- Warmer: St. Louis, MO229 mi · high 86°F · 10 wet days
How Joliet ranks in June
- Normal high236th warmest of 378 cities; 7th of 8 in Illinois
- Wet days212th driest of 378
- Comfortable days136th most of 340
What to pack for Joliet in June
- A rain jacket or umbrella – rain on about 11 days
- Sunglasses and sunscreen – about 15.1 hours of daylight and highs near 80°F
Heating and cooling
June has 30 heating degree days and 182 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Joliet in June?
The normal high is 80°F and the normal low is 60°F. From 1991 to 2020 the hottest June reading was 99°F (June 20, 1991).
Does it rain a lot in Joliet in June?
About 11 days in June have at least 0.01 in of precipitation, and the normal total is 4.3 in. The wettest June in 1991-2020 was in 1993 (11.7 in); the driest was in 2005 (1.2 in).
Is June a good time to visit Joliet?
June ranks 3rd of 12 months on our comfort score for Joliet (64 out of 100). It has about 10 comfortable days and about 4 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Joliet Brandon Rd Dam (USC00114530), 1.9 mi SW of the city center, 543 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Chicago Midway Airport (USW00014819), 25 mi NE of the city center, 612 ft (71 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Chicago Midway Intl Arpt (725340-14819), 25 mi NE of the city center, 610 ft (69 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).