Marine On St Croix Weather Forecast
- 65
- 83
Partly Sunny
- 67
- 86
Partly Sunny
- 64
- 84
Slight Chance Thunderstorms
- 64
- 87
Partly Sunny
- 61
- 79
Chance Thunderstorms
- 56
- 75
Chance Rain Showers
Today 13 Sep Washington
Mostly sunny. Highs in the mid 80s. East Winds 5 to 10 Mph.
Tonight 13 Sep Washington
Partly cloudy. Lows in the mid 60s. East Winds 5 to 10 Mph.
Marine On St Croix Temperature Statistics
September Temperature
L O Simenstad Municipal Airport (8.1 miles)
Lowest 6 September, 2025
39.4 °FAverage September
59.7 °FHighest 1 September, 2025
78.3 °F
Climate (2020–Present)
L O Simenstad Municipal Airport (8.1 miles)
Average Low 2020–2025
36.7 °FAverage 2020–2025
47 °FAverage High 2020–2025
56.6 °F