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What is Two Island Lake, SD, Weather Like in October?
During the month of October, Two Island Lake, SD,
has an average daytime high temperature of 57°F and an average overnight low temperature dropping to 38°F.
Around 2.21 inches of precipitation is received during the month,
with about 23.38 inches falling in a typical year.
2.50 inches of snow is the mean amount received during October.
Annually, Two Island Lake receives around 32.70 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: 62.6 F
(+3.8 vs avg)
Average Low: 44.1 F
(+5.2 vs avg)
This month was significantly warmer than average.
Actual data from: MID_MRLS2
Two Island Lake, SD Daily Weather Averages for October
Recorded at Roy Lake
(usc00397326),
3.7 miles
SSE of
Two Island Lake, SD
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 44 F | 65 F | 54 F | 0.09" | 21.26" | 0.00" | 30.20" | 11 F | 0.4 F |
| 10/2 | 44 F | 64 F | 54 F | 0.17" | 21.34" | 0.10" | 30.30" | 11.4 F | 0.4 F |
| 10/3 | 43 F | 64 F | 53 F | 0.26" | 21.43" | 0.10" | 30.30" | 11.9 F | 0.3 F |
| 10/4 | 43 F | 63 F | 53 F | 0.34" | 21.51" | 0.20" | 30.40" | 12.4 F | 0.3 F |
| 10/5 | 42 F | 63 F | 53 F | 0.43" | 21.60" | 0.20" | 30.40" | 12.8 F | 0.3 F |
| 10/6 | 42 F | 62 F | 52 F | 0.50" | 21.67" | 0.30" | 30.50" | 13.3 F | 0.3 F |
| 10/7 | 41 F | 62 F | 52 F | 0.58" | 21.75" | 0.30" | 30.50" | 13.7 F | 0.2 F |
| 10/8 | 41 F | 61 F | 51 F | 0.65" | 21.82" | 0.40" | 30.60" | 14.2 F | 0.2 F |
| 10/9 | 40 F | 61 F | 51 F | 0.73" | 21.90" | 0.50" | 30.70" | 14.7 F | 0.2 F |
| 10/10 | 40 F | 60 F | 50 F | 0.80" | 21.97" | 0.50" | 30.70" | 15.2 F | 0.2 F |
| 10/11 | 40 F | 60 F | 50 F | 0.87" | 22.04" | 0.60" | 30.80" | 15.6 F | 0.2 F |
| 10/12 | 39 F | 59 F | 49 F | 0.95" | 22.12" | 0.70" | 30.90" | 16.1 F | 0.1 F |
| 10/13 | 39 F | 59 F | 49 F | 1.02" | 22.19" | 0.80" | 31.00" | 16.5 F | 0.1 F |
| 10/14 | 38 F | 58 F | 48 F | 1.10" | 22.27" | 0.80" | 31.00" | 17 F | 0.1 F |
| 10/15 | 38 F | 57 F | 48 F | 1.18" | 22.35" | 0.90" | 31.10" | 17.5 F | 0.1 F |
| 10/16 | 37 F | 57 F | 47 F | 1.26" | 22.43" | 1.00" | 31.20" | 18 F | N/A |
| 10/17 | 37 F | 56 F | 47 F | 1.34" | 22.51" | 1.10" | 31.30" | 18.4 F | N/A |
| 10/18 | 36 F | 56 F | 46 F | 1.42" | 22.59" | 1.20" | 31.40" | 18.9 F | N/A |
| 10/19 | 36 F | 55 F | 46 F | 1.49" | 22.66" | 1.30" | 31.50" | 19.4 F | N/A |
| 10/20 | 36 F | 55 F | 45 F | 1.57" | 22.74" | 1.40" | 31.60" | 19.9 F | N/A |
| 10/21 | 35 F | 54 F | 45 F | 1.63" | 22.80" | 1.50" | 31.70" | 20.4 F | N/A |
| 10/22 | 35 F | 54 F | 44 F | 1.70" | 22.87" | 1.60" | 31.80" | 20.9 F | N/A |
| 10/23 | 34 F | 53 F | 44 F | 1.76" | 22.93" | 1.70" | 31.90" | 21.4 F | N/A |
| 10/24 | 34 F | 52 F | 43 F | 1.83" | 23.00" | 1.80" | 32.00" | 21.9 F | N/A |
| 10/25 | 33 F | 52 F | 43 F | 1.89" | 23.06" | 1.90" | 32.10" | 22.4 F | N/A |
| 10/26 | 33 F | 51 F | 42 F | 1.95" | 23.12" | 2.00" | 32.20" | 22.9 F | N/A |
| 10/27 | 32 F | 51 F | 42 F | 2.00" | 23.17" | 2.10" | 32.30" | 23.4 F | N/A |
| 10/28 | 32 F | 50 F | 41 F | 2.06" | 23.23" | 2.20" | 32.40" | 23.9 F | N/A |
| 10/29 | 32 F | 50 F | 41 F | 2.11" | 23.28" | 2.30" | 32.50" | 24.4 F | N/A |
| 10/30 | 31 F | 49 F | 40 F | 2.16" | 23.33" | 2.40" | 32.60" | 24.9 F | N/A |
| 10/31 | 31 F | 49 F | 40 F | 2.21" | 23.38" | 2.50" | 32.70" | 25.4 F | N/A |
