Mundelein weather in October: Mundelein, Illinois: normal highs, lows, rain and records for October
Mundelein in October has a normal high of 61°F and a normal low of 42°F, a daily mean of 51°F, falling from 67°F on the 1st to 54°F by the 31st. Measurable precipitation falls on 11 days in a normal October, 3.20 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 16°C and low of 5°C, 81 mm of precipitation in October.
- NOAA stationMundelein (4 mi WSW)
- Station IDUSC00115961
- Location42.26°N 88.08°W
- Elevation840 ft (256 m)
- From the center3 miles
- Population32,641
- Jan 29° 14°
- Feb 33° 16°
- Mar 44° 26°
- Apr 57° 36°
- May 68° 47°
- Jun 78° 58°
- Jul 82° 62°
- Aug 81° 61°
- Sep 74° 53°
- Oct 61° 42°
- Nov 47° 30°
- Dec 34° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mundelein in October?
The normal high is 61°F and the normal low 42°F, for a daily mean of 51.1°F. October is 12.2°F cooler than September and 12.8°F warmer than November. October is the 6th warmest month of the year in Mundelein and the 7th wettest. Across the month the normal high falls 13°F, from 67°F on October 1 to 54°F on October 31. From one year to the next October's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 49°F and 54°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 67°F | 47°F | 33% | 20% |
| October 8 | 64°F | 44°F | 34% | 20% |
| October 15 | 61°F | 42°F | 34% | 20% |
| October 22 | 58°F | 40°F | 33% | 19% |
| October 31 | 54°F | 36°F | 32% | 18% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 67°F | 47°F | 33% | 20% | 11 h 50 min |
| October 2 | 67°F | 46°F | 33% | 20% | 11 h 50 min |
| October 3 | 67°F | 46°F | 33% | 20% | 11 h 40 min |
| October 4 | 66°F | 46°F | 34% | 20% | 11 h 40 min |
| October 5 | 66°F | 45°F | 34% | 20% | 11 h 40 min |
| October 6 | 65°F | 45°F | 34% | 20% | 11 h 30 min |
| October 7 | 65°F | 45°F | 34% | 20% | 11 h 30 min |
| October 8 | 64°F | 44°F | 34% | 20% | 11 h 30 min |
| October 9 | 64°F | 44°F | 34% | 20% | 11 h 30 min |
| October 10 | 63°F | 44°F | 34% | 20% | 11 h 20 min |
| October 11 | 63°F | 43°F | 34% | 20% | 11 h 20 min |
| October 12 | 63°F | 43°F | 34% | 20% | 11 h 20 min |
| October 13 | 62°F | 43°F | 34% | 20% | 11 h 10 min |
| October 14 | 62°F | 42°F | 34% | 20% | 11 h 10 min |
| October 15 | 61°F | 42°F | 34% | 20% | 11 h 10 min |
| October 16 | 61°F | 42°F | 34% | 20% | 11 h 10 min |
| October 17 | 60°F | 41°F | 34% | 20% | 11 h |
| October 18 | 60°F | 41°F | 34% | 20% | 11 h |
| October 19 | 60°F | 41°F | 34% | 19% | 11 h |
| October 20 | 59°F | 40°F | 33% | 19% | 11 h |
| October 21 | 59°F | 40°F | 33% | 19% | 10 h 50 min |
| October 22 | 58°F | 40°F | 33% | 19% | 10 h 50 min |
| October 23 | 58°F | 39°F | 33% | 19% | 10 h 50 min |
| October 24 | 57°F | 39°F | 33% | 19% | 10 h 40 min |
| October 25 | 57°F | 39°F | 33% | 19% | 10 h 40 min |
| October 26 | 56°F | 38°F | 33% | 19% | 10 h 40 min |
| October 27 | 56°F | 38°F | 33% | 18% | 10 h 40 min |
| October 28 | 56°F | 37°F | 33% | 18% | 10 h 30 min |
| October 29 | 55°F | 37°F | 33% | 18% | 10 h 30 min |
| October 30 | 55°F | 37°F | 32% | 18% | 10 h 30 min |
| October 31 | 54°F | 36°F | 32% | 18% | 10 h 30 min |
- Normal high
- 61°FOctober average
- Normal low
- 42°FOctober average
- Precipitation
- 3.20 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 5
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 7
- Days at 80°F or more
- 2
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00115961; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Mundelein in October?
On a given October day the chance of 0.01 inch or more is 33% on average, highest around October 15 (34%). In all, 3.20 in falls on 11 days of a normal October, 1 of them with an inch or more.
In a normal October in Mundelein, 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00115961.
What are the records for October in Mundelein?
The warmest October temperature on this station's record (since 1999) is 87°F, on October 8, 2007; the coldest is 22°F, on October 31, 2020. The wettest October brought 7.64 in (2017).
The October mean against the 1991-2020 normal of 51.1°F: 2021 57.0°F (+5.9), 2022 50.1°F (−1.0), 2023 53.3°F (+2.2). 2 of 3 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 57.0°F | +5.9°F | 5.41 in |
| 2022 | 50.1°F | −1.0°F | 2.03 in |
| 2023 | 53.3°F | +2.2°F | 3.34 in |
Source: records: ACIS, station USC00115961; recent months: ACIS, station USC00115961. Records and recent months use complete months only.
How does October in Mundelein compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, October normal highs run from 60°F in Barrington to 73°F in Anna; Mundelein's is 61°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.