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What is New Windsor, IL, Weather Like in October?
During the month of October, New Windsor, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 40°F.
Around 2.77 inches of precipitation is received during the month,
with about 34.72 inches falling in a typical year.
Snow is not common in New Windsor, IL.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 20, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 79 F
(+12.0 vs avg)
Average Low: 54.9 F
(+12.7 vs avg)
This month was significantly warmer than average.
Actual data from: PWS_KILALPHA6
New Windsor, IL Daily Weather Averages for October
Recorded at Altona
(usc00110140),
15.5 miles
ESE of
New Windsor, 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 | 71 F | 58 F | 0.12" | 32.07" | N/A | N/A | 7.5 F | 0.9 F |
| 10/2 | 45 F | 71 F | 58 F | 0.23" | 32.18" | N/A | N/A | 7.8 F | 0.8 F |
| 10/3 | 45 F | 70 F | 58 F | 0.34" | 32.29" | N/A | N/A | 8.2 F | 0.8 F |
| 10/4 | 45 F | 70 F | 57 F | 0.45" | 32.40" | N/A | N/A | 8.6 F | 0.8 F |
| 10/5 | 44 F | 69 F | 57 F | 0.55" | 32.50" | N/A | N/A | 9 F | 0.8 F |
| 10/6 | 44 F | 69 F | 56 F | 0.65" | 32.60" | N/A | N/A | 9.4 F | 0.7 F |
| 10/7 | 43 F | 68 F | 56 F | 0.75" | 32.70" | N/A | N/A | 9.8 F | 0.7 F |
| 10/8 | 43 F | 68 F | 55 F | 0.84" | 32.79" | N/A | N/A | 10.2 F | 0.7 F |
| 10/9 | 43 F | 67 F | 55 F | 0.94" | 32.89" | N/A | N/A | 10.6 F | 0.6 F |
| 10/10 | 42 F | 67 F | 55 F | 1.04" | 32.99" | N/A | N/A | 11 F | 0.5 F |
| 10/11 | 42 F | 67 F | 54 F | 1.14" | 33.09" | N/A | N/A | 11.3 F | 0.4 F |
| 10/12 | 41 F | 66 F | 54 F | 1.23" | 33.18" | N/A | N/A | 11.7 F | 0.4 F |
| 10/13 | 41 F | 66 F | 53 F | 1.32" | 33.27" | N/A | N/A | 12.1 F | 0.3 F |
| 10/14 | 41 F | 65 F | 53 F | 1.41" | 33.36" | N/A | N/A | 12.5 F | 0.3 F |
| 10/15 | 40 F | 65 F | 52 F | 1.49" | 33.44" | N/A | N/A | 13 F | 0.3 F |
| 10/16 | 40 F | 64 F | 52 F | 1.58" | 33.53" | N/A | N/A | 13.4 F | 0.3 F |
| 10/17 | 39 F | 64 F | 52 F | 1.67" | 33.62" | N/A | N/A | 13.8 F | 0.3 F |
| 10/18 | 39 F | 63 F | 51 F | 1.76" | 33.71" | N/A | N/A | 14.2 F | 0.2 F |
| 10/19 | 39 F | 63 F | 51 F | 1.84" | 33.79" | N/A | N/A | 14.7 F | 0.2 F |
| 10/20 | 38 F | 62 F | 50 F | 1.93" | 33.88" | N/A | N/A | 15.1 F | 0.2 F |
| 10/21 | 38 F | 62 F | 50 F | 2.01" | 33.96" | N/A | N/A | 15.5 F | 0.2 F |
| 10/22 | 37 F | 61 F | 49 F | 2.09" | 34.04" | N/A | N/A | 16 F | 0.2 F |
| 10/23 | 37 F | 61 F | 49 F | 2.17" | 34.12" | N/A | N/A | 16.4 F | 0.2 F |
| 10/24 | 37 F | 60 F | 48 F | 2.25" | 34.20" | N/A | N/A | 16.9 F | 0.1 F |
| 10/25 | 36 F | 59 F | 48 F | 2.33" | 34.28" | N/A | N/A | 17.3 F | 0.1 F |
| 10/26 | 36 F | 59 F | 47 F | 2.41" | 34.36" | N/A | N/A | 17.7 F | 0.1 F |
| 10/27 | 35 F | 58 F | 47 F | 2.49" | 34.44" | N/A | N/A | 18.1 F | 0.1 F |
| 10/28 | 35 F | 58 F | 47 F | 2.57" | 34.52" | N/A | N/A | 18.6 F | 0.1 F |
| 10/29 | 35 F | 57 F | 46 F | 2.64" | 34.59" | N/A | N/A | 19 F | 0.1 F |
| 10/30 | 34 F | 57 F | 46 F | 2.71" | 34.66" | N/A | N/A | 19.5 F | 0.1 F |
| 10/31 | 34 F | 56 F | 45 F | 2.77" | 34.72" | N/A | N/A | 19.9 F | N/A |
