Your favorites:
What is Clayton, MO, Weather Like in October?
During the month of October, Clayton, MO,
has an average daytime high temperature of 70°F and an average overnight low temperature dropping to 50°F.
Around 3.20 inches of precipitation is received during the month,
with about 37.64 inches falling in a typical year.
Snow is not common in Clayton, MO.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 22, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 79 F
(+7.1 vs avg)
Average Low: 58.7 F
(+6.8 vs avg)
This month was significantly warmer than average.
Actual data from: MID_MOA28
Clayton, MO Daily Weather Averages for October
Recorded at St Louis Sci Ctr
(usc00237452),
3 miles
ESE of
Clayton, MO
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 56 F | 76 F | 66 F | 0.10" | 34.54" | N/A | N/A | 2.9 F | 3.6 F |
| 10/2 | 55 F | 75 F | 65 F | 0.19" | 34.63" | N/A | N/A | 3.1 F | 3.4 F |
| 10/3 | 55 F | 75 F | 65 F | 0.29" | 34.73" | N/A | N/A | 3.3 F | 3.2 F |
| 10/4 | 55 F | 75 F | 65 F | 0.39" | 34.83" | N/A | N/A | 3.5 F | 3.1 F |
| 10/5 | 54 F | 74 F | 64 F | 0.49" | 34.93" | N/A | N/A | 3.7 F | 2.9 F |
| 10/6 | 54 F | 74 F | 64 F | 0.59" | 35.03" | N/A | N/A | 4 F | 2.8 F |
| 10/7 | 53 F | 74 F | 63 F | 0.69" | 35.13" | N/A | N/A | 4.2 F | 2.6 F |
| 10/8 | 53 F | 73 F | 63 F | 0.78" | 35.22" | N/A | N/A | 4.5 F | 2.5 F |
| 10/9 | 53 F | 73 F | 63 F | 0.88" | 35.32" | N/A | N/A | 4.7 F | 2.3 F |
| 10/10 | 52 F | 72 F | 62 F | 0.97" | 35.41" | N/A | N/A | 5 F | 2.2 F |
| 10/11 | 52 F | 72 F | 62 F | 1.06" | 35.50" | N/A | N/A | 5.2 F | 2 F |
| 10/12 | 51 F | 71 F | 61 F | 1.14" | 35.58" | N/A | N/A | 5.4 F | 1.9 F |
| 10/13 | 51 F | 71 F | 61 F | 1.23" | 35.67" | N/A | N/A | 5.7 F | 1.7 F |
| 10/14 | 51 F | 71 F | 61 F | 1.32" | 35.76" | N/A | N/A | 5.9 F | 1.6 F |
| 10/15 | 50 F | 70 F | 60 F | 1.42" | 35.86" | N/A | N/A | 6.2 F | 1.5 F |
| 10/16 | 50 F | 70 F | 60 F | 1.51" | 35.95" | N/A | N/A | 6.5 F | 1.4 F |
| 10/17 | 50 F | 69 F | 60 F | 1.60" | 36.04" | N/A | N/A | 6.8 F | 1.3 F |
| 10/18 | 49 F | 69 F | 59 F | 1.69" | 36.13" | N/A | N/A | 7.1 F | 1.2 F |
| 10/19 | 49 F | 69 F | 59 F | 1.79" | 36.23" | N/A | N/A | 7.4 F | 1.1 F |
| 10/20 | 49 F | 68 F | 58 F | 1.89" | 36.33" | N/A | N/A | 7.7 F | 1 F |
| 10/21 | 48 F | 68 F | 58 F | 2.00" | 36.44" | N/A | N/A | 8.1 F | 1 F |
| 10/22 | 48 F | 67 F | 58 F | 2.10" | 36.54" | N/A | N/A | 8.4 F | 0.9 F |
| 10/23 | 47 F | 67 F | 57 F | 2.21" | 36.65" | N/A | N/A | 8.8 F | 0.9 F |
| 10/24 | 47 F | 66 F | 57 F | 2.33" | 36.77" | N/A | N/A | 9.1 F | 0.8 F |
| 10/25 | 47 F | 66 F | 56 F | 2.44" | 36.88" | N/A | N/A | 9.5 F | 0.8 F |
| 10/26 | 46 F | 66 F | 56 F | 2.56" | 37.00" | N/A | N/A | 9.8 F | 0.7 F |
| 10/27 | 46 F | 65 F | 56 F | 2.68" | 37.12" | N/A | N/A | 10.2 F | 0.7 F |
| 10/28 | 46 F | 65 F | 55 F | 2.81" | 37.25" | N/A | N/A | 10.6 F | 0.7 F |
| 10/29 | 45 F | 64 F | 55 F | 2.94" | 37.38" | N/A | N/A | 11 F | 0.6 F |
| 10/30 | 45 F | 64 F | 54 F | 3.07" | 37.51" | N/A | N/A | 11.3 F | 0.6 F |
| 10/31 | 45 F | 63 F | 54 F | 3.20" | 37.64" | N/A | N/A | 11.7 F | 0.5 F |
