Wheaton weather in July: Wheaton, Illinois: normal highs, lows, rain and records for July
Wheaton in July has a normal high of 86°F and a normal low of 63°F, a daily mean of 74°F, falling from 86°F on the 1st to 84°F by the 31st. Measurable precipitation falls on 9 days in a normal July, 3.86 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 17°C, 98 mm of precipitation in July.
- NOAA stationWheaton (3 mi SE)
- Station IDUSC00119221
- Location41.81°N 88.07°W
- Elevation680 ft (207 m)
- From the center4 miles
- Population53,741
- Jan 33° 17°
- Feb 38° 20°
- Mar 50° 29°
- Apr 63° 38°
- May 74° 49°
- Jun 83° 59°
- Jul 86° 63°
- Aug 84° 62°
- Sep 78° 54°
- Oct 65° 43°
- Nov 50° 32°
- Dec 38° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Wheaton in July?
The normal high is 86°F and the normal low 63°F, for a daily mean of 74.3°F. July is 3.6°F warmer than June and 1.4°F warmer than August. July is the warmest month of the year in Wheaton and the 5th wettest. Across the month the normal high falls 2°F, from 86°F on July 1 to 84°F on July 31. From one year to the next July's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Julys in three average between 71°F and 77°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 86°F | 63°F | 30% | 20% |
| July 8 | 86°F | 63°F | 29% | 20% |
| July 15 | 86°F | 63°F | 29% | 20% |
| July 22 | 85°F | 63°F | 30% | 20% |
| July 31 | 84°F | 63°F | 30% | 20% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 4, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 86°F | 63°F | 30% | 20% | 15 h 10 min |
| July 2 | 86°F | 63°F | 30% | 20% | 15 h 10 min |
| July 3 | 86°F | 63°F | 30% | 20% | 15 h 10 min |
| July 4 | 86°F | 63°F | 29% | 20% | 15 h 10 min |
| July 5 | 86°F | 63°F | 29% | 20% | 15 h 10 min |
| July 6 | 86°F | 63°F | 29% | 20% | 15 h 10 min |
| July 7 | 86°F | 63°F | 29% | 20% | 15 h 10 min |
| July 8 | 86°F | 63°F | 29% | 20% | 15 h 10 min |
| July 9 | 86°F | 63°F | 29% | 20% | 15 h |
| July 10 | 86°F | 63°F | 29% | 20% | 15 h |
| July 11 | 86°F | 63°F | 29% | 19% | 15 h |
| July 12 | 86°F | 63°F | 29% | 20% | 15 h |
| July 13 | 86°F | 63°F | 29% | 20% | 15 h |
| July 14 | 86°F | 63°F | 29% | 20% | 15 h |
| July 15 | 86°F | 63°F | 29% | 20% | 15 h |
| July 16 | 86°F | 63°F | 29% | 20% | 15 h |
| July 17 | 86°F | 63°F | 29% | 20% | 14 h 50 min |
| July 18 | 86°F | 63°F | 29% | 20% | 14 h 50 min |
| July 19 | 85°F | 63°F | 29% | 20% | 14 h 50 min |
| July 20 | 85°F | 63°F | 29% | 20% | 14 h 50 min |
| July 21 | 85°F | 63°F | 29% | 20% | 14 h 50 min |
| July 22 | 85°F | 63°F | 30% | 20% | 14 h 50 min |
| July 23 | 85°F | 63°F | 30% | 20% | 14 h 40 min |
| July 24 | 85°F | 63°F | 30% | 20% | 14 h 40 min |
| July 25 | 85°F | 63°F | 30% | 20% | 14 h 40 min |
| July 26 | 85°F | 63°F | 30% | 20% | 14 h 40 min |
| July 27 | 85°F | 63°F | 30% | 20% | 14 h 40 min |
| July 28 | 85°F | 63°F | 30% | 20% | 14 h 30 min |
| July 29 | 85°F | 63°F | 30% | 20% | 14 h 30 min |
| July 30 | 84°F | 63°F | 30% | 20% | 14 h 30 min |
| July 31 | 84°F | 63°F | 30% | 20% | 14 h 30 min |
- Normal high
- 86°FJuly average
- Normal low
- 63°FJuly average
- Precipitation
- 3.86 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 10
- Daylight
- 15 h 10 min to 14 h 30 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 28
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00119221; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Wheaton in July?
On a given July day the chance of 0.01 inch or more is 29% on average, highest around July 1 (30%). In all, 3.86 in falls on 9 days of a normal July, 1 of them with an inch or more.
In a normal July in Wheaton, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00119221.
What are the records for July in Wheaton?
The warmest July temperature on this station's record (since 1895) is 105°F, on July 25, 1940; the coldest is 41°F, on July 6, 1967. The wettest July brought 11.95 in (1996).
The July mean against the 1991-2020 normal of 74.3°F: 2021 72.9°F (−1.4), 2022 73.5°F (−0.8), 2023 71.8°F (−2.5), 2024 72.6°F (−1.7), 2026 75.1°F (+0.8). 1 of 5 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.9°F | −1.4°F | 2.04 in |
| 2022 | 73.5°F | −0.8°F | 5.70 in |
| 2023 | 71.8°F | −2.5°F | 8.92 in |
| 2024 | 72.6°F | −1.7°F | 4.79 in |
| 2026 | 75.1°F | +0.8°F | 8.31 in |
Source: records: ACIS, station USC00119221; recent months: ACIS, station USC00119221. Records and recent months use complete months only.
How does July in Wheaton compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, July normal highs run from 81°F in Barrington to 90°F in Belleville; Wheaton's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.