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What is Island Lake, WI, Weather Like in October?
During the month of October, Island Lake, WI,
has an average daytime high temperature of 58°F and an average overnight low temperature dropping to 36°F.
Around 3.15 inches of precipitation is received during the month,
with about 29.34 inches falling in a typical year.
0.80 inches of snow is the mean amount received during October.
Annually, Island Lake receives around 39.60 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: 65.9 F
(+5.9 vs avg)
Average Low: 42.6 F
(+5.4 vs avg)
This month was significantly warmer than average.
Actual data from: MID_HWDW3
Island Lake, WI Daily Weather Averages for October
Recorded at Hayward Rs
(usc00473511),
4.5 miles
NW of
Island Lake, WI
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 41 F | 65 F | 53 F | 0.13" | 26.32" | 0.00" | 38.80" | 12.3 F | 0.4 F |
| 10/2 | 41 F | 65 F | 53 F | 0.25" | 26.44" | 0.00" | 38.80" | 12.7 F | 0.3 F |
| 10/3 | 40 F | 64 F | 52 F | 0.38" | 26.57" | 0.00" | 38.80" | 13.1 F | 0.3 F |
| 10/4 | 40 F | 64 F | 52 F | 0.51" | 26.70" | 0.00" | 38.80" | 13.6 F | 0.3 F |
| 10/5 | 40 F | 63 F | 51 F | 0.63" | 26.82" | 0.00" | 38.80" | 14 F | 0.3 F |
| 10/6 | 39 F | 63 F | 51 F | 0.75" | 26.94" | 0.00" | 38.80" | 14.5 F | 0.3 F |
| 10/7 | 39 F | 62 F | 50 F | 0.86" | 27.05" | 0.10" | 38.90" | 14.9 F | 0.3 F |
| 10/8 | 38 F | 62 F | 50 F | 0.97" | 27.16" | 0.10" | 38.90" | 15.4 F | 0.3 F |
| 10/9 | 38 F | 61 F | 49 F | 1.08" | 27.27" | 0.10" | 38.90" | 15.8 F | 0.2 F |
| 10/10 | 38 F | 60 F | 49 F | 1.20" | 27.39" | 0.10" | 38.90" | 16.3 F | 0.2 F |
| 10/11 | 37 F | 60 F | 49 F | 1.31" | 27.50" | 0.10" | 38.90" | 16.7 F | 0.2 F |
| 10/12 | 37 F | 59 F | 48 F | 1.42" | 27.61" | 0.10" | 38.90" | 17.1 F | 0.2 F |
| 10/13 | 36 F | 59 F | 48 F | 1.53" | 27.72" | 0.20" | 39.00" | 17.6 F | 0.1 F |
| 10/14 | 36 F | 58 F | 47 F | 1.64" | 27.83" | 0.20" | 39.00" | 18 F | 0.1 F |
| 10/15 | 36 F | 58 F | 47 F | 1.75" | 27.94" | 0.20" | 39.00" | 18.4 F | 0.1 F |
| 10/16 | 35 F | 57 F | 46 F | 1.86" | 28.05" | 0.20" | 39.00" | 18.8 F | 0.1 F |
| 10/17 | 35 F | 57 F | 46 F | 1.97" | 28.16" | 0.20" | 39.00" | 19.3 F | N/A |
| 10/18 | 34 F | 56 F | 45 F | 2.08" | 28.27" | 0.30" | 39.10" | 19.7 F | N/A |
| 10/19 | 34 F | 56 F | 45 F | 2.18" | 28.37" | 0.30" | 39.10" | 20.2 F | N/A |
| 10/20 | 34 F | 55 F | 44 F | 2.27" | 28.46" | 0.30" | 39.10" | 20.6 F | N/A |
| 10/21 | 33 F | 55 F | 44 F | 2.36" | 28.55" | 0.30" | 39.10" | 21.1 F | N/A |
| 10/22 | 33 F | 54 F | 44 F | 2.44" | 28.63" | 0.40" | 39.20" | 21.5 F | N/A |
| 10/23 | 32 F | 54 F | 43 F | 2.52" | 28.71" | 0.40" | 39.20" | 21.9 F | N/A |
| 10/24 | 32 F | 53 F | 43 F | 2.60" | 28.79" | 0.40" | 39.20" | 22.4 F | N/A |
| 10/25 | 32 F | 53 F | 42 F | 2.68" | 28.87" | 0.50" | 39.30" | 22.8 F | N/A |
| 10/26 | 31 F | 52 F | 42 F | 2.76" | 28.95" | 0.50" | 39.30" | 23.3 F | N/A |
| 10/27 | 31 F | 52 F | 41 F | 2.84" | 29.03" | 0.50" | 39.30" | 23.7 F | N/A |
| 10/28 | 31 F | 51 F | 41 F | 2.92" | 29.11" | 0.60" | 39.40" | 24.2 F | N/A |
| 10/29 | 30 F | 51 F | 40 F | 3.00" | 29.19" | 0.70" | 39.50" | 24.6 F | N/A |
| 10/30 | 30 F | 50 F | 40 F | 3.07" | 29.26" | 0.70" | 39.50" | 25.1 F | N/A |
| 10/31 | 30 F | 50 F | 40 F | 3.15" | 29.34" | 0.80" | 39.60" | 25.5 F | N/A |
