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What is Irwin, ID, Weather Like in October?
During the month of October, Irwin, ID,
has an average daytime high temperature of 60°F and an average overnight low temperature dropping to 29°F.
Around 1.81 inches of precipitation is received during the month,
with about 17.05 inches falling in a typical year.
Snow is not common in Irwin, ID.
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: 51.7 F
(-9.6 vs avg)
Average Low: 35.6 F
(+6.1 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_PCRI1
Irwin, ID Daily Weather Averages for October
Recorded at Swan Valley
(usc00108937),
2.2 miles
NNE of
Irwin, ID
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 33 F | 67 F | 50 F | 0.06" | 15.30" | N/A | N/A | 14.8 F | N/A |
| 10/2 | 33 F | 67 F | 50 F | 0.12" | 15.36" | N/A | N/A | 15.2 F | N/A |
| 10/3 | 32 F | 66 F | 49 F | 0.18" | 15.42" | N/A | N/A | 15.6 F | N/A |
| 10/4 | 32 F | 66 F | 49 F | 0.24" | 15.48" | N/A | N/A | 16.1 F | N/A |
| 10/5 | 32 F | 65 F | 49 F | 0.30" | 15.54" | N/A | N/A | 16.5 F | N/A |
| 10/6 | 32 F | 65 F | 48 F | 0.36" | 15.60" | N/A | N/A | 16.9 F | N/A |
| 10/7 | 31 F | 64 F | 48 F | 0.42" | 15.66" | N/A | N/A | 17.3 F | N/A |
| 10/8 | 31 F | 64 F | 47 F | 0.48" | 15.72" | N/A | N/A | 17.8 F | N/A |
| 10/9 | 31 F | 63 F | 47 F | 0.54" | 15.78" | N/A | N/A | 18.2 F | N/A |
| 10/10 | 30 F | 63 F | 46 F | 0.60" | 15.84" | N/A | N/A | 18.6 F | N/A |
| 10/11 | 30 F | 62 F | 46 F | 0.66" | 15.90" | N/A | N/A | 19 F | N/A |
| 10/12 | 30 F | 62 F | 46 F | 0.72" | 15.96" | N/A | N/A | 19.5 F | N/A |
| 10/13 | 29 F | 61 F | 45 F | 0.78" | 16.02" | N/A | N/A | 19.9 F | N/A |
| 10/14 | 29 F | 60 F | 45 F | 0.84" | 16.08" | N/A | N/A | 20.3 F | N/A |
| 10/15 | 29 F | 60 F | 44 F | 0.90" | 16.14" | N/A | N/A | 20.7 F | N/A |
| 10/16 | 28 F | 59 F | 44 F | 0.96" | 16.20" | N/A | N/A | 21.2 F | N/A |
| 10/17 | 28 F | 59 F | 43 F | 1.02" | 16.26" | N/A | N/A | 21.6 F | N/A |
| 10/18 | 28 F | 58 F | 43 F | 1.08" | 16.32" | N/A | N/A | 22 F | N/A |
| 10/19 | 28 F | 58 F | 43 F | 1.14" | 16.38" | N/A | N/A | 22.4 F | N/A |
| 10/20 | 27 F | 57 F | 42 F | 1.19" | 16.43" | N/A | N/A | 22.8 F | N/A |
| 10/21 | 27 F | 57 F | 42 F | 1.25" | 16.49" | N/A | N/A | 23.2 F | N/A |
| 10/22 | 27 F | 56 F | 41 F | 1.30" | 16.54" | N/A | N/A | 23.6 F | N/A |
| 10/23 | 26 F | 56 F | 41 F | 1.35" | 16.59" | N/A | N/A | 24 F | N/A |
| 10/24 | 26 F | 55 F | 41 F | 1.41" | 16.65" | N/A | N/A | 24.4 F | N/A |
| 10/25 | 26 F | 54 F | 40 F | 1.47" | 16.71" | N/A | N/A | 24.8 F | N/A |
| 10/26 | 26 F | 54 F | 40 F | 1.52" | 16.76" | N/A | N/A | 25.2 F | N/A |
| 10/27 | 25 F | 53 F | 39 F | 1.58" | 16.82" | N/A | N/A | 25.6 F | N/A |
| 10/28 | 25 F | 53 F | 39 F | 1.64" | 16.88" | N/A | N/A | 26 F | N/A |
| 10/29 | 25 F | 52 F | 39 F | 1.69" | 16.93" | N/A | N/A | 26.4 F | N/A |
| 10/30 | 25 F | 52 F | 38 F | 1.75" | 16.99" | N/A | N/A | 26.8 F | N/A |
| 10/31 | 24 F | 51 F | 38 F | 1.81" | 17.05" | N/A | N/A | 27.2 F | N/A |
