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What is Olson Lake, WA, Weather Like in October?
During the month of October, Olson Lake, WA,
has an average daytime high temperature of 61°F and an average overnight low temperature dropping to 37°F.
Around 4.94 inches of precipitation is received during the month,
with about 35.69 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Olson Lake receives around 1.90 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 21, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 59.6 F
(-3.2 vs avg)
Average Low: 41.3 F
(+3.5 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_G3540
Olson Lake, WA Daily Weather Averages for October
Recorded at Arlington
(usc00450257),
4.1 miles
NNW of
Olson Lake, WA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 39 F | 67 F | 53 F | 0.11" | 30.86" | 0.00" | 1.90" | 12.1 F | N/A |
| 10/2 | 39 F | 66 F | 53 F | 0.22" | 30.97" | 0.00" | 1.90" | 12.4 F | N/A |
| 10/3 | 39 F | 66 F | 52 F | 0.33" | 31.08" | 0.00" | 1.90" | 12.7 F | N/A |
| 10/4 | 39 F | 65 F | 52 F | 0.45" | 31.20" | 0.00" | 1.90" | 12.9 F | N/A |
| 10/5 | 39 F | 65 F | 52 F | 0.57" | 31.32" | 0.00" | 1.90" | 13.2 F | N/A |
| 10/6 | 39 F | 64 F | 52 F | 0.69" | 31.44" | 0.00" | 1.90" | 13.5 F | N/A |
| 10/7 | 38 F | 64 F | 51 F | 0.83" | 31.58" | 0.00" | 1.90" | 13.8 F | N/A |
| 10/8 | 38 F | 64 F | 51 F | 0.96" | 31.71" | 0.00" | 1.90" | 14.1 F | N/A |
| 10/9 | 38 F | 63 F | 51 F | 1.10" | 31.85" | 0.00" | 1.90" | 14.4 F | N/A |
| 10/10 | 38 F | 63 F | 50 F | 1.24" | 31.99" | 0.00" | 1.90" | 14.7 F | N/A |
| 10/11 | 38 F | 62 F | 50 F | 1.38" | 32.13" | 0.00" | 1.90" | 14.9 F | N/A |
| 10/12 | 38 F | 62 F | 50 F | 1.53" | 32.28" | 0.00" | 1.90" | 15.2 F | N/A |
| 10/13 | 37 F | 62 F | 50 F | 1.68" | 32.43" | 0.00" | 1.90" | 15.5 F | N/A |
| 10/14 | 37 F | 61 F | 49 F | 1.83" | 32.58" | 0.00" | 1.90" | 15.8 F | N/A |
| 10/15 | 37 F | 61 F | 49 F | 1.98" | 32.73" | 0.00" | 1.90" | 16 F | N/A |
| 10/16 | 37 F | 61 F | 49 F | 2.14" | 32.89" | 0.00" | 1.90" | 16.3 F | N/A |
| 10/17 | 37 F | 60 F | 49 F | 2.31" | 33.06" | 0.00" | 1.90" | 16.5 F | N/A |
| 10/18 | 37 F | 60 F | 48 F | 2.48" | 33.23" | 0.00" | 1.90" | 16.8 F | N/A |
| 10/19 | 36 F | 60 F | 48 F | 2.65" | 33.40" | 0.00" | 1.90" | 17 F | N/A |
| 10/20 | 36 F | 59 F | 48 F | 2.83" | 33.58" | 0.00" | 1.90" | 17.3 F | N/A |
| 10/21 | 36 F | 59 F | 48 F | 3.01" | 33.76" | 0.00" | 1.90" | 17.5 F | N/A |
| 10/22 | 36 F | 59 F | 47 F | 3.19" | 33.94" | 0.00" | 1.90" | 17.8 F | N/A |
| 10/23 | 36 F | 58 F | 47 F | 3.37" | 34.12" | 0.00" | 1.90" | 18 F | N/A |
| 10/24 | 36 F | 58 F | 47 F | 3.56" | 34.31" | 0.00" | 1.90" | 18.2 F | N/A |
| 10/25 | 35 F | 58 F | 47 F | 3.75" | 34.50" | 0.00" | 1.90" | 18.5 F | N/A |
| 10/26 | 35 F | 57 F | 46 F | 3.94" | 34.69" | 0.00" | 1.90" | 18.7 F | N/A |
| 10/27 | 35 F | 57 F | 46 F | 4.14" | 34.89" | 0.00" | 1.90" | 18.9 F | N/A |
| 10/28 | 35 F | 57 F | 46 F | 4.33" | 35.08" | 0.00" | 1.90" | 19.1 F | N/A |
| 10/29 | 35 F | 57 F | 46 F | 4.53" | 35.28" | 0.00" | 1.90" | 19.4 F | N/A |
| 10/30 | 35 F | 56 F | 45 F | 4.74" | 35.49" | 0.00" | 1.90" | 19.6 F | N/A |
| 10/31 | 34 F | 56 F | 45 F | 4.94" | 35.69" | 0.00" | 1.90" | 19.8 F | N/A |
