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What is Simpson, IL, Weather Like in October?
During the month of October, Simpson, IL,
has an average daytime high temperature of 72°F and an average overnight low temperature dropping to 46°F.
Around 3.84 inches of precipitation is received during the month,
with about 42.04 inches falling in a typical year.
0.30 inches of snow is the mean amount received during October.
Annually, Simpson receives around 5.80 inches of snow.
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: 78.2 F
(+4.7 vs avg)
Average Low: 52.9 F
(+4.9 vs avg)
This month was significantly warmer than average.
Actual data from: MID_DSFI2
Simpson, IL Daily Weather Averages for October
Recorded at Dixon Springs Agric Ctr
(usc00112353),
5.2 miles
ESE of
Simpson, IL
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 52 F | 77 F | 64 F | 0.13" | 38.33" | 0.00" | 5.50" | 3.6 F | 3 F |
| 10/2 | 51 F | 77 F | 64 F | 0.27" | 38.47" | 0.00" | 5.50" | 3.8 F | 2.8 F |
| 10/3 | 51 F | 77 F | 64 F | 0.40" | 38.60" | 0.00" | 5.50" | 4 F | 2.6 F |
| 10/4 | 50 F | 76 F | 63 F | 0.53" | 38.73" | 0.00" | 5.50" | 4.2 F | 2.5 F |
| 10/5 | 50 F | 76 F | 63 F | 0.67" | 38.87" | 0.00" | 5.50" | 4.4 F | 2.3 F |
| 10/6 | 50 F | 76 F | 63 F | 0.80" | 39.00" | 0.00" | 5.50" | 4.6 F | 2.2 F |
| 10/7 | 49 F | 75 F | 62 F | 0.92" | 39.12" | 0.00" | 5.50" | 4.9 F | 2 F |
| 10/8 | 49 F | 75 F | 62 F | 1.04" | 39.24" | 0.00" | 5.50" | 5.1 F | 1.9 F |
| 10/9 | 49 F | 74 F | 61 F | 1.16" | 39.36" | 0.00" | 5.50" | 5.4 F | 1.8 F |
| 10/10 | 48 F | 74 F | 61 F | 1.27" | 39.47" | 0.00" | 5.50" | 5.6 F | 1.7 F |
| 10/11 | 48 F | 74 F | 61 F | 1.39" | 39.59" | 0.00" | 5.50" | 5.9 F | 1.5 F |
| 10/12 | 47 F | 73 F | 60 F | 1.50" | 39.70" | 0.00" | 5.50" | 6.1 F | 1.4 F |
| 10/13 | 47 F | 73 F | 60 F | 1.62" | 39.82" | 0.00" | 5.50" | 6.4 F | 1.3 F |
| 10/14 | 47 F | 72 F | 60 F | 1.74" | 39.94" | 0.00" | 5.50" | 6.6 F | 1.1 F |
| 10/15 | 46 F | 72 F | 59 F | 1.87" | 40.07" | 0.00" | 5.50" | 6.9 F | 1 F |
| 10/16 | 46 F | 71 F | 59 F | 1.99" | 40.19" | 0.00" | 5.50" | 7.2 F | 0.9 F |
| 10/17 | 46 F | 71 F | 58 F | 2.12" | 40.32" | 0.00" | 5.50" | 7.5 F | 0.9 F |
| 10/18 | 46 F | 71 F | 58 F | 2.24" | 40.44" | 0.10" | 5.60" | 7.8 F | 0.9 F |
| 10/19 | 45 F | 70 F | 58 F | 2.38" | 40.58" | 0.10" | 5.60" | 8.2 F | 0.8 F |
| 10/20 | 45 F | 70 F | 57 F | 2.50" | 40.70" | 0.10" | 5.60" | 8.5 F | 0.8 F |
| 10/21 | 45 F | 69 F | 57 F | 2.63" | 40.83" | 0.10" | 5.60" | 8.9 F | 0.7 F |
| 10/22 | 44 F | 69 F | 57 F | 2.75" | 40.95" | 0.10" | 5.60" | 9.2 F | 0.7 F |
| 10/23 | 44 F | 68 F | 56 F | 2.88" | 41.08" | 0.10" | 5.60" | 9.6 F | 0.7 F |
| 10/24 | 44 F | 68 F | 56 F | 2.99" | 41.19" | 0.20" | 5.70" | 9.9 F | 0.6 F |
| 10/25 | 43 F | 67 F | 55 F | 3.11" | 41.31" | 0.20" | 5.70" | 10.2 F | 0.6 F |
| 10/26 | 43 F | 67 F | 55 F | 3.23" | 41.43" | 0.20" | 5.70" | 10.5 F | 0.5 F |
| 10/27 | 43 F | 66 F | 55 F | 3.35" | 41.55" | 0.20" | 5.70" | 10.9 F | 0.5 F |
| 10/28 | 43 F | 66 F | 54 F | 3.47" | 41.67" | 0.20" | 5.70" | 11.3 F | 0.5 F |
| 10/29 | 42 F | 65 F | 54 F | 3.59" | 41.79" | 0.30" | 5.80" | 11.6 F | 0.5 F |
| 10/30 | 42 F | 65 F | 53 F | 3.72" | 41.92" | 0.30" | 5.80" | 12 F | 0.4 F |
| 10/31 | 42 F | 64 F | 53 F | 3.84" | 42.04" | 0.30" | 5.80" | 12.4 F | 0.4 F |
