September weather in Tomahawk, WI
The average temperature in Tomahawk in September is 57.1°F (47.8°F–66.4°F). Average precipitation: 3.57 inches.
September is a fall month in Tomahawk, and is warmer than the annual average of 40.8°F. Daily temperatures swing about 18.6°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
66.4°F
Avg Low
47.8°F
Precipitation
3.57 in
Daylight
12h 18m
September records in Tomahawk
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 87.1°F (2000) | 37.0°F (2009) | 1.38 in (2010) |
| September 2 | 82.9°F (2022) | 39.9°F (2024) | 1.47 in (2002) |
| September 3 | 82.9°F (1999) | 43.0°F (2013) | 1.12 in (2019) |
| September 4 | 91.0°F (2023) | 39.0°F (2025) | 1.02 in (2014) |
| September 5 | 91.9°F (2023) | 39.0°F (2010) | 2.01 in (2014) |
| September 6 | 87.1°F (1998) | 37.9°F (2010) | 0.62 in (2002) |
| September 7 | 82.9°F (2003) | 39.9°F (2024) | 2.52 in (2001) |
| September 8 | 84.0°F (2002) | 39.9°F (2025) | 0.73 in (2001) |
| September 9 | 84.0°F (2003) | 37.0°F (2008) | 0.29 in (2015) |
| September 10 | 84.9°F (2002) | 37.0°F (2008) | 0.92 in (2016) |
| September 11 | 87.1°F (2005) | 37.0°F (2020) | 1.18 in (2014) |
| September 12 | 91.0°F (1998) | 35.1°F (2014) | 0.98 in (2019) |
| September 13 | 84.0°F (2005) | 33.1°F (2014) | 0.83 in (2003) |
| September 14 | 84.9°F (1998) | 34.0°F (2014) | 1.04 in (2021) |
| September 15 | 80.1°F (2018) | 27.0°F (2007) | 1.11 in (2004) |
| September 16 | 84.0°F (2018) | 28.0°F (2007) | 1.98 in (2010) |
| September 17 | 82.0°F (2024) | 34.0°F (2011) | 0.41 in (2006) |
| September 18 | 82.9°F (1998) | 33.1°F (2020) | 0.40 in (2025) |
| September 19 | 82.0°F (1998) | 33.1°F (2020) | 0.88 in (2007) |
| September 20 | 82.0°F (1998) | 33.1°F (2006) | 0.57 in (2005) |
| September 21 | 78.1°F (2005) | 30.0°F (1999) | 1.98 in (2007) |
| September 22 | 82.0°F (2005) | 30.0°F (1999) | 0.86 in (2016) |
| September 23 | 77.0°F (2004) | 34.0°F (2012) | 0.48 in (2010) |
| September 24 | 84.0°F (2017) | 30.9°F (2000) | 2.04 in (2010) |
| September 25 | 84.0°F (2017) | 30.9°F (2000) | 0.90 in (2007) |
| September 26 | 82.0°F (2017) | 30.9°F (2000) | 0.56 in (2005) |
| September 27 | 77.0°F (2024) | 32.0°F (2012) | 0.53 in (2011) |
| September 28 | 78.1°F (2024) | 30.0°F (2022) | 0.26 in (2018) |
| September 29 | 80.1°F (2024) | 26.1°F (2003) | 0.55 in (2005) |
| September 30 | 80.1°F (2025) | 28.0°F (2003) | 0.42 in (2002) |