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What is Brown, IL, Weather Like in October?
During the month of October, Brown, IL,
has an average daytime high temperature of 68°F and an average overnight low temperature dropping to 43°F.
Around 3.10 inches of precipitation is received during the month,
with about 33.99 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Brown receives around 14.90 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 19, 2025)
Actual High
Average High
Actual Low
Average Low
Actual data from: PWS_JAQUES
Brown, IL Daily Weather Averages for October
Recorded at Perry 6 Nw
(usc00116738),
11.5 miles
SSW of
Brown, IL
| Day | Avg Temps ( F) | Precip (in) | Snow (in) | Degree Days ( F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 48 F | 74 F | 61 F | 0.10" | 30.99" | 0.00" | 14.90" | 5.8 F | 1.8 F |
| 10/2 | 48 F | 74 F | 61 F | 0.21" | 31.10" | 0.00" | 14.90" | 6.1 F | 1.7 F |
| 10/3 | 47 F | 73 F | 60 F | 0.31" | 31.20" | 0.00" | 14.90" | 6.3 F | 1.5 F |
| 10/4 | 47 F | 73 F | 60 F | 0.41" | 31.30" | 0.00" | 14.90" | 6.6 F | 1.4 F |
| 10/5 | 46 F | 72 F | 59 F | 0.52" | 31.41" | 0.00" | 14.90" | 6.9 F | 1.4 F |
| 10/6 | 46 F | 72 F | 59 F | 0.62" | 31.51" | 0.00" | 14.90" | 7.3 F | 1.3 F |
| 10/7 | 46 F | 72 F | 59 F | 0.72" | 31.61" | 0.00" | 14.90" | 7.6 F | 1.2 F |
| 10/8 | 45 F | 71 F | 58 F | 0.81" | 31.70" | 0.00" | 14.90" | 7.9 F | 1.1 F |
| 10/9 | 45 F | 71 F | 58 F | 0.91" | 31.80" | 0.00" | 14.90" | 8.3 F | 1.1 F |
| 10/10 | 45 F | 70 F | 57 F | 1.00" | 31.89" | 0.00" | 14.90" | 8.6 F | 1 F |
| 10/11 | 44 F | 70 F | 57 F | 1.10" | 31.99" | 0.00" | 14.90" | 8.9 F | 0.9 F |
| 10/12 | 44 F | 69 F | 57 F | 1.19" | 32.08" | 0.00" | 14.90" | 9.2 F | 0.8 F |
| 10/13 | 44 F | 69 F | 56 F | 1.28" | 32.17" | 0.00" | 14.90" | 9.5 F | 0.7 F |
| 10/14 | 43 F | 69 F | 56 F | 1.38" | 32.27" | 0.00" | 14.90" | 9.8 F | 0.6 F |
| 10/15 | 43 F | 68 F | 56 F | 1.48" | 32.37" | 0.00" | 14.90" | 10.1 F | 0.6 F |
| 10/16 | 43 F | 68 F | 55 F | 1.58" | 32.47" | 0.00" | 14.90" | 10.5 F | 0.5 F |
| 10/17 | 42 F | 67 F | 55 F | 1.68" | 32.57" | 0.00" | 14.90" | 10.8 F | 0.5 F |
| 10/18 | 42 F | 67 F | 54 F | 1.79" | 32.68" | 0.00" | 14.90" | 11.2 F | 0.4 F |
| 10/19 | 42 F | 66 F | 54 F | 1.90" | 32.79" | 0.00" | 14.90" | 11.5 F | 0.4 F |
| 10/20 | 41 F | 66 F | 54 F | 2.00" | 32.89" | 0.00" | 14.90" | 11.9 F | 0.4 F |
| 10/21 | 41 F | 65 F | 53 F | 2.10" | 32.99" | 0.00" | 14.90" | 12.2 F | 0.4 F |
| 10/22 | 41 F | 65 F | 53 F | 2.21" | 33.10" | 0.00" | 14.90" | 12.6 F | 0.4 F |
| 10/23 | 40 F | 64 F | 52 F | 2.31" | 33.20" | 0.00" | 14.90" | 13 F | 0.3 F |
| 10/24 | 40 F | 64 F | 52 F | 2.41" | 33.30" | 0.00" | 14.90" | 13.3 F | 0.3 F |
| 10/25 | 40 F | 63 F | 52 F | 2.51" | 33.40" | 0.00" | 14.90" | 13.7 F | 0.3 F |
| 10/26 | 39 F | 63 F | 51 F | 2.61" | 33.50" | 0.00" | 14.90" | 14 F | 0.2 F |
| 10/27 | 39 F | 63 F | 51 F | 2.71" | 33.60" | 0.00" | 14.90" | 14.4 F | 0.2 F |
| 10/28 | 39 F | 62 F | 50 F | 2.81" | 33.70" | 0.00" | 14.90" | 14.8 F | 0.2 F |
| 10/29 | 39 F | 62 F | 50 F | 2.91" | 33.80" | 0.00" | 14.90" | 15.1 F | 0.2 F |
| 10/30 | 38 F | 61 F | 50 F | 3.00" | 33.89" | 0.00" | 14.90" | 15.5 F | 0.2 F |
| 10/31 | 38 F | 61 F | 49 F | 3.10" | 33.99" | 0.00" | 14.90" | 15.9 F | 0.2 F |
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