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What is Ontarioville, IL, Weather Like in October?
During the month of October, Ontarioville, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 40°F.
Around 3.51 inches of precipitation is received during the month,
with about 33.59 inches falling in a typical year.
0.10 inches of snow is the mean amount received during October.
Annually, Ontarioville receives around 23.50 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 20, 2025)
Actual High
Average High
Actual Low
Average Low
Actual data from: PWS_ST00006682
Ontarioville, IL Daily Weather Averages for October
Recorded at Streamwood
(usc00118324),
3 miles
NNW of
Ontarioville, IL
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 45 F | 72 F | 58 F | 0.12" | 30.20" | 0.00" | 23.40" | 7.8 F | 1.1 F |
| 10/2 | 44 F | 71 F | 58 F | 0.25" | 30.33" | 0.00" | 23.40" | 8.2 F | 1 F |
| 10/3 | 44 F | 71 F | 57 F | 0.37" | 30.45" | 0.00" | 23.40" | 8.6 F | 1 F |
| 10/4 | 44 F | 70 F | 57 F | 0.50" | 30.58" | 0.00" | 23.40" | 8.9 F | 0.9 F |
| 10/5 | 43 F | 70 F | 57 F | 0.63" | 30.71" | 0.00" | 23.40" | 9.3 F | 0.9 F |
| 10/6 | 43 F | 69 F | 56 F | 0.75" | 30.83" | 0.00" | 23.40" | 9.7 F | 0.8 F |
| 10/7 | 43 F | 69 F | 56 F | 0.87" | 30.95" | 0.00" | 23.40" | 10 F | 0.8 F |
| 10/8 | 42 F | 69 F | 55 F | 0.98" | 31.06" | 0.00" | 23.40" | 10.4 F | 0.7 F |
| 10/9 | 42 F | 68 F | 55 F | 1.10" | 31.18" | 0.00" | 23.40" | 10.7 F | 0.7 F |
| 10/10 | 42 F | 68 F | 55 F | 1.22" | 31.30" | 0.00" | 23.40" | 11.1 F | 0.6 F |
| 10/11 | 41 F | 67 F | 54 F | 1.34" | 31.42" | 0.00" | 23.40" | 11.4 F | 0.6 F |
| 10/12 | 41 F | 67 F | 54 F | 1.45" | 31.53" | 0.00" | 23.40" | 11.7 F | 0.5 F |
| 10/13 | 41 F | 66 F | 53 F | 1.56" | 31.64" | 0.00" | 23.40" | 12.1 F | 0.4 F |
| 10/14 | 40 F | 66 F | 53 F | 1.67" | 31.75" | 0.00" | 23.40" | 12.4 F | 0.3 F |
| 10/15 | 40 F | 65 F | 53 F | 1.77" | 31.85" | 0.00" | 23.40" | 12.7 F | 0.3 F |
| 10/16 | 40 F | 65 F | 52 F | 1.88" | 31.96" | 0.00" | 23.40" | 13 F | 0.2 F |
| 10/17 | 39 F | 64 F | 52 F | 1.99" | 32.07" | 0.00" | 23.40" | 13.4 F | 0.2 F |
| 10/18 | 39 F | 64 F | 51 F | 2.10" | 32.18" | 0.00" | 23.40" | 13.7 F | 0.1 F |
| 10/19 | 39 F | 64 F | 51 F | 2.20" | 32.28" | 0.00" | 23.40" | 14.1 F | 0.1 F |
| 10/20 | 38 F | 63 F | 51 F | 2.31" | 32.39" | 0.00" | 23.40" | 14.5 F | 0.1 F |
| 10/21 | 38 F | 63 F | 50 F | 2.41" | 32.49" | 0.00" | 23.40" | 14.8 F | 0.1 F |
| 10/22 | 38 F | 62 F | 50 F | 2.52" | 32.60" | 0.00" | 23.40" | 15.2 F | 0.1 F |
| 10/23 | 37 F | 62 F | 50 F | 2.63" | 32.71" | 0.00" | 23.40" | 15.6 F | 0.1 F |
| 10/24 | 37 F | 61 F | 49 F | 2.74" | 32.82" | 0.00" | 23.40" | 16 F | 0.1 F |
| 10/25 | 37 F | 61 F | 49 F | 2.85" | 32.93" | 0.00" | 23.40" | 16.4 F | N/A |
| 10/26 | 36 F | 60 F | 48 F | 2.96" | 33.04" | 0.10" | 23.50" | 16.8 F | N/A |
| 10/27 | 36 F | 60 F | 48 F | 3.08" | 33.16" | 0.10" | 23.50" | 17.2 F | N/A |
| 10/28 | 36 F | 59 F | 47 F | 3.19" | 33.27" | 0.10" | 23.50" | 17.6 F | N/A |
| 10/29 | 35 F | 59 F | 47 F | 3.30" | 33.38" | 0.10" | 23.50" | 18 F | N/A |
| 10/30 | 35 F | 58 F | 47 F | 3.41" | 33.49" | 0.10" | 23.50" | 18.4 F | N/A |
| 10/31 | 35 F | 58 F | 46 F | 3.51" | 33.59" | 0.10" | 23.50" | 18.8 F | N/A |
Weather data provided by Xweather
