Swan River Mouth Weather Forecast
- 38
- 44
Rain
- 33
- 39
Rain
- 34
- 38
Partly Sunny
- 37
- 43
Chance Rain
- 38
- 46
Chance Rain
- 28
- 45
Slight Chance Rain
Today 22 Mar Barnstable
Rain likely. Patchy fog. Near steady temperature in the mid 40s. South Winds 15 to 20 Mph. Chance of rain 70 percent.
Tonight 22 Mar Barnstable
Rain. Patchy fog in the evening. Lows in the upper 30s. Southwest Winds 10 to 15 Mph, becoming north with Gusts up to 30 Mph after midnight. Chance of rain near 100 percent.
Swan River Mouth Temperature Statistics
March Temperature
Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)
Lowest 2 March, 2026
12.9 °FAverage March
38.3 °FHighest 9 March, 2026
63 °F
Climate (2021–Present)
Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)
Average Low 2021–2026
44.9 °FAverage 2021–2026
52.5 °FAverage High 2021–2026
59.5 °F