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What is Dowell Lake, IL, Weather Like in October?
During the month of October, Dowell Lake, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 45°F.
Around 2.80 inches of precipitation is received during the month,
with about 32.93 inches falling in a typical year.
0.10 inches of snow is the mean amount received during October.
Annually, Dowell Lake receives around 13.40 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 25, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 75.5 F
(+9.0 vs avg)
Average Low: 53.5 F
(+7.6 vs avg)
This month was significantly warmer than average.
Actual data from: MID_GLDI2
Dowell Lake, IL Daily Weather Averages for October
Recorded at Gladstone Dam 18
(usc00113455),
8.1 miles
NW of
Dowell Lake, 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 | 72 F | 61 F | 0.10" | 30.23" | 0.00" | 13.30" | 5.6 F | 1.6 F |
| 10/2 | 50 F | 71 F | 61 F | 0.20" | 30.33" | 0.00" | 13.30" | 5.9 F | 1.4 F |
| 10/3 | 49 F | 71 F | 60 F | 0.30" | 30.43" | 0.00" | 13.30" | 6.2 F | 1.3 F |
| 10/4 | 49 F | 71 F | 60 F | 0.40" | 30.53" | 0.00" | 13.30" | 6.5 F | 1.2 F |
| 10/5 | 49 F | 70 F | 59 F | 0.50" | 30.63" | 0.00" | 13.30" | 6.8 F | 1.1 F |
| 10/6 | 48 F | 70 F | 59 F | 0.59" | 30.72" | 0.00" | 13.30" | 7.1 F | 1.1 F |
| 10/7 | 48 F | 69 F | 59 F | 0.68" | 30.81" | 0.00" | 13.30" | 7.5 F | 1 F |
| 10/8 | 48 F | 69 F | 58 F | 0.77" | 30.90" | 0.00" | 13.30" | 7.8 F | 0.9 F |
| 10/9 | 47 F | 68 F | 58 F | 0.87" | 31.00" | 0.00" | 13.30" | 8.2 F | 0.9 F |
| 10/10 | 47 F | 68 F | 57 F | 0.96" | 31.09" | 0.00" | 13.30" | 8.6 F | 0.8 F |
| 10/11 | 46 F | 67 F | 57 F | 1.05" | 31.18" | 0.00" | 13.30" | 8.9 F | 0.7 F |
| 10/12 | 46 F | 67 F | 56 F | 1.15" | 31.28" | 0.00" | 13.30" | 9.3 F | 0.7 F |
| 10/13 | 46 F | 66 F | 56 F | 1.24" | 31.37" | 0.00" | 13.30" | 9.6 F | 0.6 F |
| 10/14 | 45 F | 66 F | 56 F | 1.32" | 31.45" | 0.00" | 13.30" | 9.9 F | 0.5 F |
| 10/15 | 45 F | 65 F | 55 F | 1.41" | 31.54" | 0.00" | 13.30" | 10.3 F | 0.4 F |
| 10/16 | 45 F | 65 F | 55 F | 1.50" | 31.63" | 0.00" | 13.30" | 10.7 F | 0.4 F |
| 10/17 | 44 F | 64 F | 54 F | 1.59" | 31.72" | 0.00" | 13.30" | 11.1 F | 0.3 F |
| 10/18 | 44 F | 64 F | 54 F | 1.68" | 31.81" | 0.00" | 13.30" | 11.5 F | 0.3 F |
| 10/19 | 43 F | 63 F | 53 F | 1.78" | 31.91" | 0.00" | 13.30" | 11.9 F | 0.3 F |
| 10/20 | 43 F | 63 F | 53 F | 1.86" | 31.99" | 0.00" | 13.30" | 12.3 F | 0.2 F |
| 10/21 | 43 F | 63 F | 53 F | 1.95" | 32.08" | 0.00" | 13.30" | 12.7 F | 0.2 F |
| 10/22 | 42 F | 62 F | 52 F | 2.04" | 32.17" | 0.00" | 13.30" | 13.1 F | 0.2 F |
| 10/23 | 42 F | 62 F | 52 F | 2.12" | 32.25" | 0.00" | 13.30" | 13.5 F | 0.2 F |
| 10/24 | 42 F | 61 F | 51 F | 2.21" | 32.34" | 0.00" | 13.30" | 13.9 F | 0.2 F |
| 10/25 | 41 F | 61 F | 51 F | 2.29" | 32.42" | 0.00" | 13.30" | 14.3 F | 0.1 F |
| 10/26 | 41 F | 60 F | 50 F | 2.38" | 32.51" | 0.00" | 13.30" | 14.7 F | 0.1 F |
| 10/27 | 40 F | 60 F | 50 F | 2.46" | 32.59" | 0.00" | 13.30" | 15.2 F | 0.1 F |
| 10/28 | 40 F | 59 F | 50 F | 2.55" | 32.68" | 0.00" | 13.30" | 15.6 F | 0.1 F |
| 10/29 | 40 F | 59 F | 49 F | 2.64" | 32.77" | 0.00" | 13.30" | 16 F | 0.1 F |
| 10/30 | 39 F | 58 F | 49 F | 2.72" | 32.85" | 0.00" | 13.30" | 16.5 F | 0.1 F |
| 10/31 | 39 F | 58 F | 48 F | 2.80" | 32.93" | 0.10" | 13.40" | 16.9 F | 0.1 F |
