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What is Raccoon Lake Dam, IL, Weather Like in October?
During the month of October, Raccoon Lake Dam, IL,
has an average daytime high temperature of 70°F and an average overnight low temperature dropping to 45°F.
Around 3.45 inches of precipitation is received during the month,
with about 37.57 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Raccoon Lake Dam receives around 8.40 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 22, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 78.9 F
(+7.2 vs avg)
Average Low: 49.3 F
(+2.8 vs avg)
Daytime temperatures were significantly above average.
Actual data from: MID_UP009
Raccoon Lake Dam, IL Daily Weather Averages for October
Recorded at Iuka 12 Sw
(usc00114400),
8.2 miles
ESE of
Raccoon Lake Dam, IL
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 50 F | 76 F | 63 F | 0.10" | 34.22" | 0.00" | 8.40" | 4.7 F | 2.7 F |
| 10/2 | 50 F | 75 F | 63 F | 0.19" | 34.31" | 0.00" | 8.40" | 5 F | 2.6 F |
| 10/3 | 49 F | 75 F | 62 F | 0.29" | 34.41" | 0.00" | 8.40" | 5.2 F | 2.4 F |
| 10/4 | 49 F | 75 F | 62 F | 0.40" | 34.52" | 0.00" | 8.40" | 5.5 F | 2.3 F |
| 10/5 | 49 F | 74 F | 61 F | 0.50" | 34.62" | 0.00" | 8.40" | 5.7 F | 2.2 F |
| 10/6 | 48 F | 74 F | 61 F | 0.60" | 34.72" | 0.00" | 8.40" | 6 F | 2.1 F |
| 10/7 | 48 F | 73 F | 61 F | 0.71" | 34.83" | 0.00" | 8.40" | 6.3 F | 1.9 F |
| 10/8 | 48 F | 73 F | 60 F | 0.81" | 34.93" | 0.00" | 8.40" | 6.6 F | 1.8 F |
| 10/9 | 47 F | 73 F | 60 F | 0.92" | 35.04" | 0.00" | 8.40" | 6.8 F | 1.7 F |
| 10/10 | 47 F | 72 F | 60 F | 1.02" | 35.14" | 0.00" | 8.40" | 7.1 F | 1.6 F |
| 10/11 | 47 F | 72 F | 59 F | 1.12" | 35.24" | 0.00" | 8.40" | 7.4 F | 1.4 F |
| 10/12 | 46 F | 71 F | 59 F | 1.22" | 35.34" | 0.00" | 8.40" | 7.6 F | 1.3 F |
| 10/13 | 46 F | 71 F | 58 F | 1.33" | 35.45" | 0.00" | 8.40" | 7.9 F | 1.1 F |
| 10/14 | 45 F | 70 F | 58 F | 1.43" | 35.55" | 0.00" | 8.40" | 8.1 F | 1 F |
| 10/15 | 45 F | 70 F | 58 F | 1.54" | 35.66" | 0.00" | 8.40" | 8.4 F | 0.9 F |
| 10/16 | 45 F | 70 F | 57 F | 1.65" | 35.77" | 0.00" | 8.40" | 8.7 F | 0.8 F |
| 10/17 | 44 F | 69 F | 57 F | 1.77" | 35.89" | 0.00" | 8.40" | 9 F | 0.7 F |
| 10/18 | 44 F | 69 F | 56 F | 1.89" | 36.01" | 0.00" | 8.40" | 9.4 F | 0.6 F |
| 10/19 | 44 F | 68 F | 56 F | 2.01" | 36.13" | 0.00" | 8.40" | 9.8 F | 0.6 F |
| 10/20 | 43 F | 68 F | 55 F | 2.14" | 36.26" | 0.00" | 8.40" | 10.2 F | 0.6 F |
| 10/21 | 43 F | 67 F | 55 F | 2.26" | 36.38" | 0.00" | 8.40" | 10.5 F | 0.5 F |
| 10/22 | 43 F | 67 F | 55 F | 2.39" | 36.51" | 0.00" | 8.40" | 10.9 F | 0.5 F |
| 10/23 | 42 F | 66 F | 54 F | 2.51" | 36.63" | 0.00" | 8.40" | 11.3 F | 0.5 F |
| 10/24 | 42 F | 66 F | 54 F | 2.64" | 36.76" | 0.00" | 8.40" | 11.7 F | 0.5 F |
| 10/25 | 42 F | 65 F | 53 F | 2.76" | 36.88" | 0.00" | 8.40" | 12.1 F | 0.4 F |
| 10/26 | 41 F | 65 F | 53 F | 2.87" | 36.99" | 0.00" | 8.40" | 12.5 F | 0.4 F |
| 10/27 | 41 F | 64 F | 53 F | 2.99" | 37.11" | 0.00" | 8.40" | 12.9 F | 0.4 F |
| 10/28 | 40 F | 64 F | 52 F | 3.11" | 37.23" | 0.00" | 8.40" | 13.3 F | 0.4 F |
| 10/29 | 40 F | 63 F | 52 F | 3.22" | 37.34" | 0.00" | 8.40" | 13.7 F | 0.3 F |
| 10/30 | 40 F | 63 F | 51 F | 3.34" | 37.46" | 0.00" | 8.40" | 14.1 F | 0.3 F |
| 10/31 | 39 F | 62 F | 51 F | 3.45" | 37.57" | 0.00" | 8.40" | 14.5 F | 0.3 F |
