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What is Gann Valley, SD, Weather Like in October?
During the month of October, Gann Valley, SD,
has an average daytime high temperature of 61°F and an average overnight low temperature dropping to 35°F.
Snow is not common in Gann Valley, SD.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 19, 2025)
Actual High
Average High
Actual Low
Average Low
Actual data from: MID_RHUS2
Gann Valley, SD Daily Weather Averages for October
Recorded at Gann Valley 4nw
(usc00393217),
2 miles
S of
Gann Valley, SD
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 41 F | 69 F | 55 F | N/A | N/A | N/A | N/A | 10.5 F | 0.5 F |
| 10/2 | 41 F | 68 F | 55 F | N/A | N/A | N/A | N/A | 10.9 F | 0.5 F |
| 10/3 | 40 F | 68 F | 54 F | N/A | N/A | N/A | N/A | 11.3 F | 0.4 F |
| 10/4 | 40 F | 67 F | 54 F | N/A | N/A | N/A | N/A | 11.8 F | 0.4 F |
| 10/5 | 39 F | 67 F | 53 F | N/A | N/A | N/A | N/A | 12.3 F | 0.3 F |
| 10/6 | 39 F | 66 F | 53 F | N/A | N/A | N/A | N/A | 12.7 F | 0.3 F |
| 10/7 | 39 F | 66 F | 52 F | N/A | N/A | N/A | N/A | 13.2 F | 0.3 F |
| 10/8 | 38 F | 65 F | 52 F | N/A | N/A | N/A | N/A | 13.7 F | 0.2 F |
| 10/9 | 38 F | 65 F | 51 F | N/A | N/A | N/A | N/A | 14.2 F | 0.2 F |
| 10/10 | 37 F | 64 F | 51 F | N/A | N/A | N/A | N/A | 14.6 F | 0.2 F |
| 10/11 | 37 F | 63 F | 50 F | N/A | N/A | N/A | N/A | 15.1 F | 0.2 F |
| 10/12 | 36 F | 63 F | 50 F | N/A | N/A | N/A | N/A | 15.6 F | 0.1 F |
| 10/13 | 36 F | 62 F | 49 F | N/A | N/A | N/A | N/A | 16 F | 0.1 F |
| 10/14 | 36 F | 62 F | 49 F | N/A | N/A | N/A | N/A | 16.5 F | 0.1 F |
| 10/15 | 35 F | 61 F | 48 F | N/A | N/A | N/A | N/A | 17 F | 0.1 F |
| 10/16 | 35 F | 61 F | 48 F | N/A | N/A | N/A | N/A | 17.4 F | N/A |
| 10/17 | 34 F | 60 F | 47 F | N/A | N/A | N/A | N/A | 17.9 F | N/A |
| 10/18 | 34 F | 60 F | 47 F | N/A | N/A | N/A | N/A | 18.3 F | N/A |
| 10/19 | 33 F | 59 F | 46 F | N/A | N/A | N/A | N/A | 18.8 F | N/A |
| 10/20 | 33 F | 58 F | 46 F | N/A | N/A | N/A | N/A | 19.3 F | N/A |
| 10/21 | 33 F | 58 F | 45 F | N/A | N/A | N/A | N/A | 19.8 F | N/A |
| 10/22 | 32 F | 57 F | 45 F | N/A | N/A | N/A | N/A | 20.2 F | N/A |
| 10/23 | 32 F | 57 F | 44 F | N/A | N/A | N/A | N/A | 20.7 F | N/A |
| 10/24 | 31 F | 56 F | 44 F | N/A | N/A | N/A | N/A | 21.2 F | N/A |
| 10/25 | 31 F | 56 F | 43 F | N/A | N/A | N/A | N/A | 21.6 F | N/A |
| 10/26 | 31 F | 55 F | 43 F | N/A | N/A | N/A | N/A | 22.1 F | N/A |
| 10/27 | 30 F | 55 F | 42 F | N/A | N/A | N/A | N/A | 22.6 F | N/A |
| 10/28 | 30 F | 54 F | 42 F | N/A | N/A | N/A | N/A | 23 F | N/A |
| 10/29 | 29 F | 54 F | 42 F | N/A | N/A | N/A | N/A | 23.5 F | N/A |
| 10/30 | 29 F | 53 F | 41 F | N/A | N/A | N/A | N/A | 24 F | N/A |
| 10/31 | 28 F | 53 F | 41 F | N/A | N/A | N/A | N/A | 24.4 F | N/A |
Weather data provided by Xweather
