Arnold Field Weather Forecast
- 57
- 79
Slight Chance Rain Showers
- 53
- 68
Partly Sunny
- 54
- 72
Mostly Cloudy
- 60
- 80
Chance Rain Showers
- 58
- 75
Rain Showers Likely
- 57
- 77
Chance Rain Showers
Today 18 Sep Sanilac
Mostly sunny in the Morning, then partly cloudy with a slight chance of Showers early in the afternoon. Partly cloudy with a slight chance of Showers and Thunderstorms in the late afternoon. Highs around 80. Temperatures falling into the in the upper 60s in the afternoon. Northwest Winds 5 to 10 Mph, becoming northeast 5 to 15 Mph in the late afternoon. Chance of rain 20 percent.
Tonight 18 Sep Sanilac
Mostly cloudy. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.
Arnold Field Temperature Statistics
September Temperature
St Clair County International Airport (26.7 miles)
Lowest 7 September, 2025
37.4 °FAverage September
59.3 °FHighest 3 September, 2025
80.6 °F
Climate (2020–Present)
St Clair County International Airport (26.7 miles)
Average Low 2020–2025
40 °FAverage 2020–2025
49.5 °FAverage High 2020–2025
58.6 °F