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What is Pleasanton, CA, Weather Like in October?

During the month of October, Pleasanton, CA, has an average daytime high temperature of 79°F and an average overnight low temperature dropping to 50°F. Around 0.75 inches of precipitation is received during the month, with about 10.70 inches falling in a typical year. Snow is not common in Pleasanton, CA.

October 2025: Actual vs. Average Temperatures

Showing temperatures through today (October 20, 2025)
Actual High Average High Actual Low Average Low

Month Summary
Average High: 74.4 F (-5.5 vs avg)
Average Low: 52.3 F (+1.5 vs avg)

Daytime temperatures were significantly below average.

Actual data from: KLVK

Pleasanton, CA Daily Weather Averages for October

Recorded at Livermore Muni Ap (usw00023285), 3.9 miles ENE of Pleasanton, CA
Day Avg Temps (°F) Precip (in) Snow (in) Degree Days (°F)
Low High Mean Month Year Month Year Heat Cool
10/1 53 F 82 F 68 F 0.01" 9.96" N/A N/A 1.2 F 3.7 F
10/2 53 F 82 F 67 F 0.02" 9.97" N/A N/A 1.2 F 3.6 F
10/3 52 F 82 F 67 F 0.04" 9.99" N/A N/A 1.3 F 3.4 F
10/4 52 F 82 F 67 F 0.05" 10.00" N/A N/A 1.4 F 3.2 F
10/5 52 F 81 F 67 F 0.07" 10.02" N/A N/A 1.5 F 3.1 F
10/6 52 F 81 F 66 F 0.08" 10.03" N/A N/A 1.6 F 3 F
10/7 51 F 81 F 66 F 0.10" 10.05" N/A N/A 1.7 F 2.8 F
10/8 51 F 81 F 66 F 0.11" 10.06" N/A N/A 1.8 F 2.7 F
10/9 51 F 80 F 66 F 0.13" 10.08" N/A N/A 1.9 F 2.5 F
10/10 51 F 80 F 65 F 0.15" 10.10" N/A N/A 2 F 2.3 F
10/11 51 F 80 F 65 F 0.17" 10.12" N/A N/A 2.1 F 2.2 F
10/12 50 F 79 F 65 F 0.18" 10.13" N/A N/A 2.2 F 2 F
10/13 50 F 79 F 65 F 0.20" 10.15" N/A N/A 2.3 F 1.9 F
10/14 50 F 79 F 64 F 0.23" 10.18" N/A N/A 2.5 F 1.7 F
10/15 50 F 79 F 64 F 0.25" 10.20" N/A N/A 2.6 F 1.6 F
10/16 49 F 78 F 64 F 0.27" 10.22" N/A N/A 2.8 F 1.5 F
10/17 49 F 78 F 63 F 0.30" 10.25" N/A N/A 3 F 1.4 F
10/18 49 F 78 F 63 F 0.32" 10.27" N/A N/A 3.2 F 1.3 F
10/19 49 F 77 F 63 F 0.35" 10.30" N/A N/A 3.3 F 1.2 F
10/20 48 F 77 F 63 F 0.38" 10.33" N/A N/A 3.5 F 1.1 F
10/21 48 F 76 F 62 F 0.41" 10.36" N/A N/A 3.7 F 0.9 F
10/22 48 F 76 F 62 F 0.44" 10.39" N/A N/A 3.9 F 0.8 F
10/23 48 F 76 F 62 F 0.47" 10.42" N/A N/A 4.1 F 0.7 F
10/24 47 F 75 F 61 F 0.50" 10.45" N/A N/A 4.3 F 0.6 F
10/25 47 F 75 F 61 F 0.53" 10.48" N/A N/A 4.6 F 0.5 F
10/26 47 F 75 F 61 F 0.57" 10.52" N/A N/A 4.8 F 0.5 F
10/27 47 F 74 F 60 F 0.61" 10.56" N/A N/A 5.1 F 0.4 F
10/28 46 F 74 F 60 F 0.64" 10.59" N/A N/A 5.4 F 0.4 F
10/29 46 F 73 F 60 F 0.68" 10.63" N/A N/A 5.7 F 0.3 F
10/30 46 F 73 F 59 F 0.71" 10.66" N/A N/A 6 F 0.3 F
10/31 46 F 72 F 59 F 0.75" 10.70" N/A N/A 6.3 F 0.3 F
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