Weather in Onset, MA
Updated 2026-08-11 12:00 local time · ZIP codes 02558
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
83°2% rain91°2% rain91°1% rain90°1% rain89°1% rain88°1% rain86°1% rain81°1% rain
76°2% rain74°3% rain73°3% rain71°3% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 3%).
It feels like 85°F with winds near 9 mph.
76°F, 2% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 16 mph.
Current temperature is 83°F, wind 9 mph, rain chance up to 3%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
Onset weather today
Sunny and 83°F in Onset, MA. Today's high is 91°F with a 4% rain chance. Winds are around 9 mph with gusts near 11 mph. Relative humidity is 66%, pressure is 29.83 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Onset
Sunrise is at 05:47 AM and sunset is at 07:48 PM. Tomorrow's forecast calls for Sunny with a high near 81°F and a low near 69°F. The maximum rain chance is 6%.