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What is Colusa, IL, Weather Like in October?
During the month of October, Colusa, IL,
has an average daytime high temperature of 65°F and an average overnight low temperature dropping to 43°F.
Around 3.10 inches of precipitation is received during the month,
with about 34.51 inches falling in a typical year.
Snow is not common in Colusa, IL.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 26, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 72.6 F
(+7.0 vs avg)
Average Low: 51.6 F
(+8.2 vs avg)
This month was significantly warmer than average.
Actual data from: MID_E1388
Colusa, IL Daily Weather Averages for October
Recorded at La Harpe
(usc00114823),
8.9 miles
E of
Colusa, 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 | 71 F | 60 F | 0.11" | 31.52" | N/A | N/A | 6.9 F | 1.4 F |
| 10/2 | 48 F | 71 F | 59 F | 0.22" | 31.63" | N/A | N/A | 7.2 F | 1.3 F |
| 10/3 | 47 F | 70 F | 59 F | 0.33" | 31.74" | N/A | N/A | 7.5 F | 1.2 F |
| 10/4 | 47 F | 70 F | 58 F | 0.44" | 31.85" | N/A | N/A | 7.8 F | 1.1 F |
| 10/5 | 46 F | 69 F | 58 F | 0.54" | 31.95" | N/A | N/A | 8.2 F | 1 F |
| 10/6 | 46 F | 69 F | 57 F | 0.64" | 32.05" | N/A | N/A | 8.5 F | 1 F |
| 10/7 | 46 F | 69 F | 57 F | 0.74" | 32.15" | N/A | N/A | 8.9 F | 0.9 F |
| 10/8 | 45 F | 68 F | 57 F | 0.85" | 32.26" | N/A | N/A | 9.2 F | 0.8 F |
| 10/9 | 45 F | 68 F | 56 F | 0.95" | 32.36" | N/A | N/A | 9.6 F | 0.8 F |
| 10/10 | 44 F | 67 F | 56 F | 1.06" | 32.47" | N/A | N/A | 10 F | 0.7 F |
| 10/11 | 44 F | 67 F | 55 F | 1.16" | 32.57" | N/A | N/A | 10.3 F | 0.7 F |
| 10/12 | 44 F | 66 F | 55 F | 1.26" | 32.67" | N/A | N/A | 10.7 F | 0.6 F |
| 10/13 | 43 F | 66 F | 55 F | 1.36" | 32.77" | N/A | N/A | 11 F | 0.5 F |
| 10/14 | 43 F | 65 F | 54 F | 1.46" | 32.87" | N/A | N/A | 11.4 F | 0.4 F |
| 10/15 | 43 F | 65 F | 54 F | 1.56" | 32.97" | N/A | N/A | 11.7 F | 0.4 F |
| 10/16 | 42 F | 64 F | 53 F | 1.65" | 33.06" | N/A | N/A | 12.1 F | 0.3 F |
| 10/17 | 42 F | 64 F | 53 F | 1.75" | 33.16" | N/A | N/A | 12.5 F | 0.3 F |
| 10/18 | 42 F | 63 F | 52 F | 1.86" | 33.27" | N/A | N/A | 12.9 F | 0.2 F |
| 10/19 | 41 F | 63 F | 52 F | 1.96" | 33.37" | N/A | N/A | 13.3 F | 0.2 F |
| 10/20 | 41 F | 62 F | 52 F | 2.05" | 33.46" | N/A | N/A | 13.7 F | 0.2 F |
| 10/21 | 40 F | 62 F | 51 F | 2.15" | 33.56" | N/A | N/A | 14.1 F | 0.2 F |
| 10/22 | 40 F | 61 F | 51 F | 2.25" | 33.66" | N/A | N/A | 14.5 F | 0.2 F |
| 10/23 | 40 F | 61 F | 50 F | 2.34" | 33.75" | N/A | N/A | 14.9 F | 0.2 F |
| 10/24 | 39 F | 60 F | 50 F | 2.44" | 33.85" | N/A | N/A | 15.3 F | 0.1 F |
| 10/25 | 39 F | 60 F | 49 F | 2.54" | 33.95" | N/A | N/A | 15.7 F | 0.1 F |
| 10/26 | 38 F | 59 F | 49 F | 2.63" | 34.04" | N/A | N/A | 16.1 F | 0.1 F |
| 10/27 | 38 F | 59 F | 49 F | 2.73" | 34.14" | N/A | N/A | 16.6 F | 0.1 F |
| 10/28 | 38 F | 58 F | 48 F | 2.83" | 34.24" | N/A | N/A | 17 F | 0.1 F |
| 10/29 | 37 F | 58 F | 48 F | 2.92" | 34.33" | N/A | N/A | 17.4 F | N/A |
| 10/30 | 37 F | 57 F | 47 F | 3.01" | 34.42" | N/A | N/A | 17.9 F | N/A |
| 10/31 | 37 F | 57 F | 47 F | 3.10" | 34.51" | N/A | N/A | 18.3 F | N/A |
