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What is Thornton, IA, Weather Like in October?
During the month of October, Thornton, IA,
has an average daytime high temperature of 61°F and an average overnight low temperature dropping to 37°F.
Around 2.53 inches of precipitation is received during the month,
with about 33.29 inches falling in a typical year.
0.40 inches of snow is the mean amount received during October.
Annually, Thornton receives around 32.00 inches of snow.
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: 67.2 F
(+5.4 vs avg)
Average Low: 44.9 F
(+6.9 vs avg)
This month was significantly warmer than average.
Actual data from: KMCW
Thornton, IA Daily Weather Averages for October
Recorded at Mason City Muni Ap
(usw00014940),
14.8 miles
N of
Thornton, IA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 43 F | 68 F | 55 F | 0.11" | 30.87" | 0.00" | 31.60" | 10.4 F | 0.6 F |
| 10/2 | 42 F | 67 F | 55 F | 0.23" | 30.99" | 0.00" | 31.60" | 10.8 F | 0.6 F |
| 10/3 | 42 F | 67 F | 54 F | 0.33" | 31.09" | 0.00" | 31.60" | 11.2 F | 0.5 F |
| 10/4 | 41 F | 66 F | 54 F | 0.43" | 31.19" | 0.00" | 31.60" | 11.7 F | 0.5 F |
| 10/5 | 41 F | 66 F | 53 F | 0.52" | 31.28" | 0.00" | 31.60" | 12.1 F | 0.5 F |
| 10/6 | 41 F | 65 F | 53 F | 0.61" | 31.37" | 0.00" | 31.60" | 12.5 F | 0.5 F |
| 10/7 | 40 F | 65 F | 53 F | 0.69" | 31.45" | 0.00" | 31.60" | 13 F | 0.5 F |
| 10/8 | 40 F | 64 F | 52 F | 0.77" | 31.53" | 0.00" | 31.60" | 13.4 F | 0.4 F |
| 10/9 | 39 F | 64 F | 52 F | 0.86" | 31.62" | 0.00" | 31.60" | 13.9 F | 0.4 F |
| 10/10 | 39 F | 63 F | 51 F | 0.94" | 31.70" | 0.00" | 31.60" | 14.3 F | 0.3 F |
| 10/11 | 39 F | 63 F | 51 F | 1.02" | 31.78" | 0.00" | 31.60" | 14.7 F | 0.3 F |
| 10/12 | 38 F | 62 F | 50 F | 1.11" | 31.87" | 0.00" | 31.60" | 15.1 F | 0.2 F |
| 10/13 | 38 F | 62 F | 50 F | 1.19" | 31.95" | 0.10" | 31.70" | 15.5 F | 0.2 F |
| 10/14 | 37 F | 61 F | 49 F | 1.28" | 32.04" | 0.10" | 31.70" | 16 F | 0.1 F |
| 10/15 | 37 F | 61 F | 49 F | 1.37" | 32.13" | 0.10" | 31.70" | 16.4 F | 0.1 F |
| 10/16 | 37 F | 60 F | 48 F | 1.45" | 32.21" | 0.10" | 31.70" | 16.8 F | 0.1 F |
| 10/17 | 36 F | 59 F | 48 F | 1.53" | 32.29" | 0.10" | 31.70" | 17.3 F | 0.1 F |
| 10/18 | 36 F | 59 F | 47 F | 1.61" | 32.37" | 0.10" | 31.70" | 17.7 F | 0.1 F |
| 10/19 | 35 F | 58 F | 47 F | 1.69" | 32.45" | 0.10" | 31.70" | 18.2 F | N/A |
| 10/20 | 35 F | 58 F | 46 F | 1.77" | 32.53" | 0.10" | 31.70" | 18.6 F | N/A |
| 10/21 | 35 F | 57 F | 46 F | 1.85" | 32.61" | 0.10" | 31.70" | 19.1 F | N/A |
| 10/22 | 34 F | 57 F | 45 F | 1.92" | 32.68" | 0.20" | 31.80" | 19.6 F | N/A |
| 10/23 | 34 F | 56 F | 45 F | 1.99" | 32.75" | 0.20" | 31.80" | 20 F | N/A |
| 10/24 | 33 F | 56 F | 45 F | 2.06" | 32.82" | 0.20" | 31.80" | 20.5 F | N/A |
| 10/25 | 33 F | 55 F | 44 F | 2.13" | 32.89" | 0.20" | 31.80" | 21 F | N/A |
| 10/26 | 33 F | 55 F | 44 F | 2.20" | 32.96" | 0.20" | 31.80" | 21.4 F | N/A |
| 10/27 | 32 F | 54 F | 43 F | 2.26" | 33.02" | 0.30" | 31.90" | 21.9 F | N/A |
| 10/28 | 32 F | 53 F | 43 F | 2.33" | 33.09" | 0.30" | 31.90" | 22.4 F | N/A |
| 10/29 | 31 F | 53 F | 42 F | 2.40" | 33.16" | 0.30" | 31.90" | 22.8 F | N/A |
| 10/30 | 31 F | 52 F | 42 F | 2.46" | 33.22" | 0.40" | 32.00" | 23.3 F | N/A |
| 10/31 | 31 F | 52 F | 41 F | 2.53" | 33.29" | 0.40" | 32.00" | 23.8 F | N/A |
