Rockford, Sunday, 9 August, 04:35
Partly cloudy. Feels like 62°. High 82°, low 62°.
In January, Rockford, IL averages a high of 28.1° and a low of 13.2°. About 1.7 inches of precipitation fall over the month (8 wet days). The record high is 59.7° (1997) and the record low -29.9° (1994). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 29.5° | 15.3° | 23% | 50.7° (2011) | -15.9° (1969) |
| 2 | 29.1° | 15.3° | 27% | 56.5° (2000) | -16.2° (1979) |
| 3 | 28.8° | 15.1° | 25% | 54.1° (1998) | -17.9° (1985) |
| 4 | 28.2° | 13.6° | 25% | 59.7° (1997) | -11.6° (1969) |
| 5 | 27.5° | 11.3° | 17% | 52.9° (1998) | -23.8° (1999) |
| 6 | 26.6° | 14° | 25% | 56.8° (2008) | -21.5° (1988) |
| 7 | 25.9° | 11.5° | 18% | 57.7° (2008) | -20° (1988) |
| 8 | 26.6° | 9.7° | 20% | 54.3° (2008) | -18.2° (1986) |
| 9 | 27.5° | 12.4° | 27% | 52° (2002) | -15.3° (2014) |
| 10 | 28° | 12.7° | 33% | 57° (1975) | -26.9° (1982) |
| 11 | 29.5° | 13.6° | 32% | 52.7° (2018) | -24.7° (1979) |
| 12 | 29.1° | 15.6° | 22% | 52° (2006) | -13° (1974) |
| 13 | 28.4° | 14.4° | 38% | 50.4° (1961) | -9.6° (1963) |
| 14 | 26.8° | 13.3° | 30% | 45.1° (1987) | -15.2° (1994) |
| 15 | 25.5° | 11.3° | 22% | 48.6° (1990) | -22.7° (1994) |
| 16 | 28.2° | 12.6° | 22% | 54° (1990) | -24.3° (2009) |
| 17 | 28.4° | 13.3° | 28% | 54.1° (1990) | -28.1° (1982) |
| 18 | 27° | 11.8° | 17% | 55.8° (1996) | -27.8° (1994) |
| 19 | 27.3° | 10.8° | 22% | 50.2° (2006) | -29.9° (1994) |
| 20 | 26.1° | 11.1° | 27% | 44.8° (2018) | -28.1° (1985) |
| 21 | 27.7° | 13.1° | 23% | 55.4° (2017) | -24.9° (1963) |
| 22 | 31.1° | 16° | 33% | 54.9° (1964) | -15.3° (1970) |
| 23 | 29.7° | 15.6° | 30% | 52.2° (1967) | -24.2° (1963) |
| 24 | 29.3° | 15.1° | 28% | 58.5° (1967) | -13.7° (1963) |
| 25 | 29.1° | 14.4° | 32% | 55.8° (1967) | -14.6° (1963) |
| 26 | 27.5° | 11.5° | 28% | 52.9° (1973) | -20.4° (2022) |
| 27 | 28° | 12.6° | 17% | 54° (2002) | -16.4° (1988) |
| 28 | 28.2° | 13.5° | 23% | 46.8° (2013) | -22.9° (1963) |
| 29 | 28.8° | 13.3° | 33% | 57.6° (2013) | -22.9° (1966) |
| 30 | 28° | 13.3° | 25% | 54.9° (1988) | -26.7° (2019) |
| 31 | 29.7° | 13.3° | 18% | 59.4° (1989) | -29.6° (2019) |