October weather in Potomac, IL
The average temperature in Potomac in October is 55.0°F (44.4°F–65.6°F). Average precipitation: 3.43 inches.
October is a fall month in Potomac, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 10h 54m. For travel, October is a comfortable month to visit.
Avg High
65.6°F
Avg Low
44.4°F
Precipitation
3.43 in
Snow
0.1 in
October records in Potomac
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (1919) | 28.0°F (1939) | 2.70 in (1977) |
| October 2 | 90.0°F (1953) | 27.0°F (2003) | 1.21 in (1973) |
| October 3 | 93.0°F (1954) | 28.9°F (1974) | 1.95 in (1949) |
| October 4 | 89.1°F (1951) | 27.0°F (1935) | 1.88 in (1954) |
| October 5 | 89.1°F (1916) | 28.0°F (1980) | 2.34 in (1955) |
| October 6 | 90.0°F (2007) | 23.0°F (1935) | 2.66 in (1976) |
| October 7 | 90.0°F (1963) | 27.0°F (1952) | 1.32 in (1921) |
| October 8 | 93.9°F (1939) | 26.1°F (1952) | 1.39 in (1914) |
| October 9 | 88.0°F (1939) | 23.0°F (1915) | 1.78 in (1990) |
| October 10 | 88.0°F (1938) | 24.1°F (1964) | 2.96 in (1939) |
| October 11 | 89.1°F (1928) | 18.0°F (1906) | 1.95 in (1949) |
| October 12 | 87.1°F (1928) | 27.0°F (1987) | 1.27 in (1969) |
| October 13 | 84.9°F (1920) | 23.0°F (1909) | 2.43 in (2001) |
| October 14 | 84.9°F (1920) | 25.0°F (1909) | 1.09 in (1960) |
| October 15 | 89.1°F (1938) | 23.0°F (1937) | 0.82 in (2001) |
| October 16 | 84.9°F (1938) | 28.0°F (1944) | 2.21 in (1957) |
| October 17 | 87.1°F (1938) | 28.0°F (2015) | 1.68 in (1993) |
| October 18 | 87.1°F (1920) | 19.0°F (1948) | 2.82 in (1946) |
| October 19 | 86.0°F (1953) | 21.9°F (1992) | 1.80 in (1985) |
| October 20 | 88.0°F (1953) | 19.0°F (1930) | 1.78 in (1916) |
| October 21 | 88.0°F (1953) | 18.0°F (1930) | 1.03 in (1984) |
| October 22 | 88.0°F (1953) | 19.0°F (1930) | 3.01 in (1983) |
| October 23 | 82.0°F (1947) | 23.0°F (1969) | 2.78 in (1951) |
| October 24 | 80.1°F (1963) | 19.9°F (1903) | 1.59 in (2021) |
| October 25 | 81.0°F (1927) | 24.1°F (2013) | 2.77 in (2021) |
| October 26 | 82.9°F (1927) | 19.0°F (1962) | 1.61 in (2019) |
| October 27 | 84.9°F (1927) | 19.9°F (1903) | 2.52 in (1947) |
| October 28 | 84.9°F (1927) | 19.9°F (1925) | 0.82 in (2015) |
| October 29 | 82.0°F (1927) | 16.0°F (1925) | 1.18 in (1917) |
| October 30 | 84.0°F (1950) | 9.0°F (1925) | 1.88 in (2009) |
| October 31 | 82.9°F (1950) | 18.0°F (1925) | 1.40 in (2013) |