Marathon City Weather Forecast
- -3
- 26
Chance Snow
- 5
- 14
Chance Snow
- 24
- 31
Chance Snow
- 16
- 33
Mostly Cloudy
- 28
- 36
Mostly Cloudy
- 25
- 39
Mostly Cloudy
Today 20 Dec Marathon
Blustery. Not as cold. Mostly cloudy with a chance of light snow in the Morning, then mostly sunny in the afternoon. Highs in the middle 20s. Temperatures falling into the mid teens in the afternoon. West wind 10 to 15 Mph increasing to 15 to 25 Mph in the afternoon. Gusts up to 35 Mph. Chance of snow 40 percent.
Tonight 20 Dec Marathon
Blustery. Colder. Mostly clear. Lows zero to 5 below. West wind 15 to 25 Mph with Gusts to around 35 Mph decreasing to 10 to 15 Mph after midnight. Wind Chills to 20 below zero.
Marathon City Temperature Statistics
December Temperature
Wausau Downtown Airport (9.9 miles)
Lowest 13 December, 2025
-13 °FAverage December
13 °FHighest 16 December, 2025
39 °F
Climate (2020–Present)
Wausau Downtown Airport (9.9 miles)
Average Low 2020–2025
37.5 °FAverage 2020–2025
46.8 °FAverage High 2020–2025
56 °F