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What is Avon, IL, Weather Like in October?
During the month of October, Avon, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 40°F.
Around 2.85 inches of precipitation is received during the month,
with about 33.40 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Avon receives around 17.20 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 23, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 76 F
(+9.5 vs avg)
Average Low: 51 F
(+9.2 vs avg)
This month was significantly warmer than average.
Actual data from: MID_F5864
Avon, IL Daily Weather Averages for October
Recorded at Avon
(usc00110356),
0.5 miles
W of
Avon, IL
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 46 F | 72 F | 59 F | 0.10" | 30.65" | 0.00" | 17.20" | 7.2 F | 1 F |
| 10/2 | 46 F | 71 F | 58 F | 0.19" | 30.74" | 0.00" | 17.20" | 7.5 F | 0.9 F |
| 10/3 | 45 F | 71 F | 58 F | 0.29" | 30.84" | 0.00" | 17.20" | 7.9 F | 0.9 F |
| 10/4 | 45 F | 70 F | 58 F | 0.39" | 30.94" | 0.00" | 17.20" | 8.3 F | 0.8 F |
| 10/5 | 45 F | 70 F | 57 F | 0.48" | 31.03" | 0.00" | 17.20" | 8.7 F | 0.8 F |
| 10/6 | 44 F | 69 F | 57 F | 0.57" | 31.12" | 0.00" | 17.20" | 9.1 F | 0.8 F |
| 10/7 | 44 F | 69 F | 56 F | 0.66" | 31.21" | 0.00" | 17.20" | 9.5 F | 0.8 F |
| 10/8 | 43 F | 68 F | 56 F | 0.74" | 31.29" | 0.00" | 17.20" | 9.9 F | 0.7 F |
| 10/9 | 43 F | 68 F | 55 F | 0.84" | 31.39" | 0.00" | 17.20" | 10.3 F | 0.6 F |
| 10/10 | 42 F | 67 F | 55 F | 0.93" | 31.48" | 0.00" | 17.20" | 10.7 F | 0.6 F |
| 10/11 | 42 F | 67 F | 54 F | 1.02" | 31.57" | 0.00" | 17.20" | 11.1 F | 0.5 F |
| 10/12 | 42 F | 66 F | 54 F | 1.11" | 31.66" | 0.00" | 17.20" | 11.5 F | 0.4 F |
| 10/13 | 41 F | 66 F | 54 F | 1.20" | 31.75" | 0.00" | 17.20" | 11.9 F | 0.4 F |
| 10/14 | 41 F | 65 F | 53 F | 1.29" | 31.84" | 0.00" | 17.20" | 12.3 F | 0.3 F |
| 10/15 | 40 F | 65 F | 53 F | 1.38" | 31.93" | 0.00" | 17.20" | 12.8 F | 0.3 F |
| 10/16 | 40 F | 64 F | 52 F | 1.47" | 32.02" | 0.00" | 17.20" | 13.2 F | 0.3 F |
| 10/17 | 39 F | 64 F | 52 F | 1.57" | 32.12" | 0.00" | 17.20" | 13.7 F | 0.3 F |
| 10/18 | 39 F | 63 F | 51 F | 1.66" | 32.21" | 0.00" | 17.20" | 14.2 F | 0.3 F |
| 10/19 | 39 F | 63 F | 51 F | 1.75" | 32.30" | 0.00" | 17.20" | 14.6 F | 0.2 F |
| 10/20 | 38 F | 62 F | 50 F | 1.84" | 32.39" | 0.00" | 17.20" | 15.1 F | 0.2 F |
| 10/21 | 38 F | 62 F | 50 F | 1.93" | 32.48" | 0.00" | 17.20" | 15.6 F | 0.2 F |
| 10/22 | 37 F | 61 F | 49 F | 2.02" | 32.57" | 0.00" | 17.20" | 16 F | 0.2 F |
| 10/23 | 37 F | 61 F | 49 F | 2.11" | 32.66" | 0.00" | 17.20" | 16.5 F | 0.2 F |
| 10/24 | 36 F | 60 F | 48 F | 2.20" | 32.75" | 0.00" | 17.20" | 16.9 F | 0.2 F |
| 10/25 | 36 F | 60 F | 48 F | 2.29" | 32.84" | 0.00" | 17.20" | 17.4 F | 0.1 F |
| 10/26 | 36 F | 59 F | 47 F | 2.39" | 32.94" | 0.00" | 17.20" | 17.8 F | 0.1 F |
| 10/27 | 35 F | 59 F | 47 F | 2.48" | 33.03" | 0.00" | 17.20" | 18.2 F | 0.1 F |
| 10/28 | 35 F | 58 F | 46 F | 2.58" | 33.13" | 0.00" | 17.20" | 18.7 F | 0.1 F |
| 10/29 | 34 F | 58 F | 46 F | 2.67" | 33.22" | 0.00" | 17.20" | 19.1 F | 0.1 F |
| 10/30 | 34 F | 57 F | 46 F | 2.76" | 33.31" | 0.00" | 17.20" | 19.6 F | 0.1 F |
| 10/31 | 34 F | 57 F | 45 F | 2.85" | 33.40" | 0.00" | 17.20" | 20 F | N/A |
