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What is Middletown, CA, Weather Like in October?
During the month of October, Middletown, CA,
has an average daytime high temperature of 79°F and an average overnight low temperature dropping to 48°F.
Around 1.83 inches of precipitation is received during the month,
with about 26.87 inches falling in a typical year.
Snow is not common in Middletown, CA.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 26, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 79.4 F
(-0.4 vs avg)
Average Low: 48.6 F
(+0.6 vs avg)
Actual data from: PWS_GRANTSTCALISTOGA
Middletown, CA Daily Weather Averages for October
Recorded at Calistoga
(usc00041312),
10.8 miles
S of
Middletown, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 50 F | 84 F | 67 F | 0.03" | 25.07" | 0.00" | 0.00" | 1.4 F | 3.5 F |
| 10/2 | 50 F | 84 F | 67 F | 0.06" | 25.10" | 0.00" | 0.00" | 1.5 F | 3.4 F |
| 10/3 | 50 F | 83 F | 67 F | 0.09" | 25.13" | 0.00" | 0.00" | 1.7 F | 3.3 F |
| 10/4 | 50 F | 83 F | 66 F | 0.13" | 25.17" | 0.00" | 0.00" | 1.8 F | 3.2 F |
| 10/5 | 50 F | 83 F | 66 F | 0.16" | 25.20" | 0.00" | 0.00" | 1.9 F | 3 F |
| 10/6 | 49 F | 82 F | 66 F | 0.20" | 25.24" | 0.00" | 0.00" | 2 F | 2.9 F |
| 10/7 | 49 F | 82 F | 66 F | 0.24" | 25.28" | 0.00" | 0.00" | 2.2 F | 2.8 F |
| 10/8 | 49 F | 82 F | 65 F | 0.28" | 25.32" | 0.00" | 0.00" | 2.3 F | 2.6 F |
| 10/9 | 49 F | 81 F | 65 F | 0.32" | 25.36" | 0.00" | 0.00" | 2.4 F | 2.5 F |
| 10/10 | 49 F | 81 F | 65 F | 0.37" | 25.41" | 0.00" | 0.00" | 2.6 F | 2.3 F |
| 10/11 | 48 F | 81 F | 65 F | 0.41" | 25.45" | 0.00" | 0.00" | 2.7 F | 2.2 F |
| 10/12 | 48 F | 80 F | 64 F | 0.47" | 25.51" | 0.00" | 0.00" | 2.8 F | 2.1 F |
| 10/13 | 48 F | 80 F | 64 F | 0.52" | 25.56" | 0.00" | 0.00" | 3 F | 1.9 F |
| 10/14 | 48 F | 80 F | 64 F | 0.58" | 25.62" | 0.00" | 0.00" | 3.1 F | 1.8 F |
| 10/15 | 48 F | 79 F | 63 F | 0.64" | 25.68" | 0.00" | 0.00" | 3.3 F | 1.6 F |
| 10/16 | 47 F | 79 F | 63 F | 0.71" | 25.75" | 0.00" | 0.00" | 3.4 F | 1.5 F |
| 10/17 | 47 F | 78 F | 63 F | 0.78" | 25.82" | 0.00" | 0.00" | 3.6 F | 1.4 F |
| 10/18 | 47 F | 78 F | 63 F | 0.85" | 25.89" | 0.00" | 0.00" | 3.8 F | 1.3 F |
| 10/19 | 47 F | 78 F | 62 F | 0.92" | 25.96" | 0.00" | 0.00" | 4 F | 1.2 F |
| 10/20 | 47 F | 77 F | 62 F | 1.00" | 26.04" | 0.00" | 0.00" | 4.1 F | 1.1 F |
| 10/21 | 46 F | 77 F | 62 F | 1.08" | 26.12" | 0.00" | 0.00" | 4.3 F | 1 F |
| 10/22 | 46 F | 77 F | 61 F | 1.15" | 26.19" | 0.00" | 0.00" | 4.5 F | 0.8 F |
| 10/23 | 46 F | 76 F | 61 F | 1.23" | 26.27" | 0.00" | 0.00" | 4.7 F | 0.7 F |
| 10/24 | 46 F | 76 F | 61 F | 1.31" | 26.35" | 0.00" | 0.00" | 4.9 F | 0.6 F |
| 10/25 | 46 F | 75 F | 60 F | 1.38" | 26.42" | 0.00" | 0.00" | 5.2 F | 0.6 F |
| 10/26 | 45 F | 75 F | 60 F | 1.46" | 26.50" | 0.00" | 0.00" | 5.4 F | 0.5 F |
| 10/27 | 45 F | 74 F | 60 F | 1.53" | 26.57" | 0.00" | 0.00" | 5.7 F | 0.5 F |
| 10/28 | 45 F | 74 F | 60 F | 1.61" | 26.65" | 0.00" | 0.00" | 5.9 F | 0.4 F |
| 10/29 | 45 F | 74 F | 59 F | 1.68" | 26.72" | 0.00" | 0.00" | 6.2 F | 0.4 F |
| 10/30 | 45 F | 73 F | 59 F | 1.76" | 26.80" | 0.00" | 0.00" | 6.5 F | 0.3 F |
| 10/31 | 44 F | 73 F | 59 F | 1.83" | 26.87" | 0.00" | 0.00" | 6.7 F | 0.3 F |
