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What is Morristown, IL, Weather Like in October?
During the month of October, Morristown, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 43°F.
Around 3.21 inches of precipitation is received during the month,
with about 34.41 inches falling in a typical year.
0.10 inches of snow is the mean amount received during October.
Annually, Morristown receives around 19.50 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 21, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 75.5 F
(+8.8 vs avg)
Average Low: 54.3 F
(+9.3 vs avg)
This month was significantly warmer than average.
Actual data from: MID_AT835
Morristown, IL Daily Weather Averages for October
Recorded at Geneseo
(usc00113384),
8.6 miles
ENE of
Morristown, IL
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 49 F | 71 F | 60 F | 0.10" | 31.30" | 0.00" | 19.40" | 6.6 F | 1.4 F |
| 10/2 | 48 F | 71 F | 59 F | 0.20" | 31.40" | 0.00" | 19.40" | 6.9 F | 1.3 F |
| 10/3 | 48 F | 70 F | 59 F | 0.31" | 31.51" | 0.00" | 19.40" | 7.2 F | 1.2 F |
| 10/4 | 47 F | 70 F | 59 F | 0.42" | 31.62" | 0.00" | 19.40" | 7.6 F | 1.1 F |
| 10/5 | 47 F | 69 F | 58 F | 0.52" | 31.72" | 0.00" | 19.40" | 7.9 F | 1.1 F |
| 10/6 | 47 F | 69 F | 58 F | 0.62" | 31.82" | 0.00" | 19.40" | 8.3 F | 1 F |
| 10/7 | 46 F | 68 F | 57 F | 0.72" | 31.92" | 0.00" | 19.40" | 8.7 F | 1 F |
| 10/8 | 46 F | 68 F | 57 F | 0.82" | 32.02" | 0.00" | 19.40" | 9 F | 0.9 F |
| 10/9 | 46 F | 67 F | 57 F | 0.93" | 32.13" | 0.00" | 19.40" | 9.4 F | 0.8 F |
| 10/10 | 45 F | 67 F | 56 F | 1.04" | 32.24" | 0.00" | 19.40" | 9.7 F | 0.8 F |
| 10/11 | 45 F | 66 F | 56 F | 1.15" | 32.35" | 0.00" | 19.40" | 10 F | 0.7 F |
| 10/12 | 44 F | 66 F | 55 F | 1.25" | 32.45" | 0.00" | 19.40" | 10.4 F | 0.6 F |
| 10/13 | 44 F | 66 F | 55 F | 1.35" | 32.55" | 0.00" | 19.40" | 10.7 F | 0.5 F |
| 10/14 | 44 F | 65 F | 54 F | 1.45" | 32.65" | 0.00" | 19.40" | 11.1 F | 0.4 F |
| 10/15 | 43 F | 65 F | 54 F | 1.56" | 32.76" | 0.00" | 19.40" | 11.5 F | 0.4 F |
| 10/16 | 43 F | 64 F | 54 F | 1.66" | 32.86" | 0.00" | 19.40" | 11.8 F | 0.3 F |
| 10/17 | 43 F | 64 F | 53 F | 1.77" | 32.97" | 0.00" | 19.40" | 12.3 F | 0.3 F |
| 10/18 | 42 F | 63 F | 53 F | 1.87" | 33.07" | 0.00" | 19.40" | 12.7 F | 0.3 F |
| 10/19 | 42 F | 63 F | 52 F | 1.98" | 33.18" | 0.00" | 19.40" | 13.1 F | 0.3 F |
| 10/20 | 41 F | 62 F | 52 F | 2.08" | 33.28" | 0.00" | 19.40" | 13.5 F | 0.3 F |
| 10/21 | 41 F | 62 F | 51 F | 2.18" | 33.38" | 0.00" | 19.40" | 13.9 F | 0.2 F |
| 10/22 | 41 F | 61 F | 51 F | 2.28" | 33.48" | 0.00" | 19.40" | 14.3 F | 0.2 F |
| 10/23 | 40 F | 61 F | 51 F | 2.38" | 33.58" | 0.00" | 19.40" | 14.8 F | 0.2 F |
| 10/24 | 40 F | 60 F | 50 F | 2.48" | 33.68" | 0.10" | 19.50" | 15.2 F | 0.2 F |
| 10/25 | 40 F | 60 F | 50 F | 2.58" | 33.78" | 0.10" | 19.50" | 15.6 F | 0.2 F |
| 10/26 | 39 F | 59 F | 49 F | 2.69" | 33.89" | 0.10" | 19.50" | 16 F | 0.2 F |
| 10/27 | 39 F | 59 F | 49 F | 2.80" | 34.00" | 0.10" | 19.50" | 16.5 F | 0.2 F |
| 10/28 | 38 F | 58 F | 48 F | 2.91" | 34.11" | 0.10" | 19.50" | 16.9 F | 0.1 F |
| 10/29 | 38 F | 58 F | 48 F | 3.01" | 34.21" | 0.10" | 19.50" | 17.3 F | 0.1 F |
| 10/30 | 38 F | 57 F | 47 F | 3.11" | 34.31" | 0.10" | 19.50" | 17.8 F | 0.1 F |
| 10/31 | 37 F | 57 F | 47 F | 3.21" | 34.41" | 0.10" | 19.50" | 18.2 F | 0.1 F |
