Horn Island Weather Forecast
- 55
- 65
Partly Sunny
- 58
- 63
Mostly Cloudy
- 61
- 68
Slight Chance Rain Showers
- 51
- 68
Mostly Sunny
- 49
- 60
Mostly Sunny
- 55
- 64
Partly Sunny
Today 16 Sep Coastal York
Patchy fog this morning. Mostly sunny. Highs in the mid 70s. Light and variable Winds.
Tonight 16 Sep Coastal York
Partly cloudy. Lows in the upper 40s. Light and variable Winds.
Horn Island Temperature Statistics
September Temperature
Pease Air Force Base / Portsmouth (6.8 miles)
Lowest 9 September, 2025
47.3 °FAverage September
64.1 °FHighest 6 September, 2025
82.6 °F
Climate (2020–Present)
Pease Air Force Base / Portsmouth (6.8 miles)
Average Low 2020–2025
42.6 °FAverage 2020–2025
50.9 °FAverage High 2020–2025
59.4 °F