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What is Thunder Bay Island, MI, Weather Like in October?
During the month of October, Thunder Bay Island, MI,
has an average daytime high temperature of 56°F and an average overnight low temperature dropping to 40°F.
Around 3.24 inches of precipitation is received during the month,
with about 27.62 inches falling in a typical year.
0.10 inches of snow is the mean amount received during October.
Annually, Thunder Bay Island receives around 39.80 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: 64 F
(+5.8 vs avg)
Average Low: 49.1 F
(+7.7 vs avg)
This month was significantly warmer than average.
Actual data from: MID_LPNM4
Thunder Bay Island, MI Daily Weather Averages for October
Recorded at Alpena Wwtp
(usw00014814),
11.2 miles
W of
Thunder Bay Island, MI
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 45 F | 63 F | 54 F | 0.10" | 24.48" | 0.00" | 39.70" | 11.5 F | 0.4 F |
| 10/2 | 45 F | 62 F | 54 F | 0.21" | 24.59" | 0.00" | 39.70" | 11.8 F | 0.3 F |
| 10/3 | 44 F | 62 F | 53 F | 0.32" | 24.70" | 0.00" | 39.70" | 12.2 F | 0.3 F |
| 10/4 | 44 F | 61 F | 53 F | 0.43" | 24.81" | 0.00" | 39.70" | 12.6 F | 0.3 F |
| 10/5 | 44 F | 61 F | 52 F | 0.54" | 24.92" | 0.00" | 39.70" | 13 F | 0.2 F |
| 10/6 | 43 F | 60 F | 52 F | 0.65" | 25.03" | 0.00" | 39.70" | 13.4 F | 0.2 F |
| 10/7 | 43 F | 60 F | 51 F | 0.76" | 25.14" | 0.00" | 39.70" | 13.8 F | 0.2 F |
| 10/8 | 42 F | 60 F | 51 F | 0.87" | 25.25" | 0.00" | 39.70" | 14.2 F | 0.2 F |
| 10/9 | 42 F | 59 F | 51 F | 0.97" | 25.35" | 0.00" | 39.70" | 14.6 F | 0.2 F |
| 10/10 | 42 F | 59 F | 50 F | 1.08" | 25.46" | 0.00" | 39.70" | 15 F | 0.1 F |
| 10/11 | 41 F | 58 F | 50 F | 1.18" | 25.56" | 0.00" | 39.70" | 15.4 F | 0.1 F |
| 10/12 | 41 F | 58 F | 49 F | 1.29" | 25.67" | 0.00" | 39.70" | 15.8 F | 0.1 F |
| 10/13 | 41 F | 57 F | 49 F | 1.40" | 25.78" | 0.00" | 39.70" | 16.2 F | 0.1 F |
| 10/14 | 40 F | 57 F | 49 F | 1.50" | 25.88" | 0.00" | 39.70" | 16.6 F | 0.1 F |
| 10/15 | 40 F | 56 F | 48 F | 1.61" | 25.99" | 0.00" | 39.70" | 17 F | 0.1 F |
| 10/16 | 40 F | 56 F | 48 F | 1.72" | 26.10" | 0.00" | 39.70" | 17.4 F | N/A |
| 10/17 | 39 F | 55 F | 47 F | 1.83" | 26.21" | 0.00" | 39.70" | 17.8 F | N/A |
| 10/18 | 39 F | 55 F | 47 F | 1.94" | 26.32" | 0.00" | 39.70" | 18.2 F | N/A |
| 10/19 | 38 F | 55 F | 47 F | 2.04" | 26.42" | 0.00" | 39.70" | 18.6 F | N/A |
| 10/20 | 38 F | 54 F | 46 F | 2.15" | 26.53" | 0.00" | 39.70" | 18.9 F | N/A |
| 10/21 | 38 F | 54 F | 46 F | 2.25" | 26.63" | 0.00" | 39.70" | 19.3 F | N/A |
| 10/22 | 37 F | 53 F | 45 F | 2.35" | 26.73" | 0.00" | 39.70" | 19.7 F | N/A |
| 10/23 | 37 F | 53 F | 45 F | 2.45" | 26.83" | 0.00" | 39.70" | 20.1 F | N/A |
| 10/24 | 37 F | 52 F | 45 F | 2.55" | 26.93" | 0.00" | 39.70" | 20.5 F | N/A |
| 10/25 | 36 F | 52 F | 44 F | 2.64" | 27.02" | 0.10" | 39.80" | 20.9 F | N/A |
| 10/26 | 36 F | 51 F | 44 F | 2.75" | 27.13" | 0.10" | 39.80" | 21.2 F | N/A |
| 10/27 | 36 F | 51 F | 43 F | 2.85" | 27.23" | 0.10" | 39.80" | 21.6 F | N/A |
| 10/28 | 36 F | 51 F | 43 F | 2.95" | 27.33" | 0.10" | 39.80" | 22 F | N/A |
| 10/29 | 35 F | 50 F | 43 F | 3.05" | 27.43" | 0.10" | 39.80" | 22.4 F | N/A |
| 10/30 | 35 F | 50 F | 42 F | 3.15" | 27.53" | 0.10" | 39.80" | 22.7 F | N/A |
| 10/31 | 35 F | 49 F | 42 F | 3.24" | 27.62" | 0.10" | 39.80" | 23.1 F | N/A |
