Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

San Juan, PR Local Forecast Office

Ponce PR

Marine Point Forecast

[NOTICE]

Overnight
Low: 72 °F
NE 6kt
< 1ft
Tuesday
High: 84 °F
⇑E 12kt
< 1ft
Tuesday Night
Low: 71 °F
ENE 7kt⇓
< 1ft
Wednesday
High: 85 °F
⇑E 10kt
< 1ft
Wednesday Night
Low: 74 °F
ENE 8kt
< 1ft
Thursday
High: 84 °F
E 15kt
< 1ft
Thursday Night
Low: 73 °F
ENE 8kt
< 1ft
Friday
High: 85 °F
ENE 14kt
< 1ft
Friday Night
Low: 74 °F
ENE 8kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:56 pm EST Dec 8, 2025
Forecast Valid: 11pm EST Dec 8, 2025-6pm EST Dec 15, 2025

View Nearby Observations

Detailed Forecast

Overnight

NE wind around 6 kt. Isolated showers. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming E 7 to 12 kt in the morning. Winds could gust as high as 20 kt. Scattered showers, mainly before 11am. Seas 1 ft or less.

Tuesday Night

ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

Wednesday Night

ENE wind 6 to 8 kt. Isolated showers. Seas 1 ft or less.

Thursday

E wind 6 to 15 kt, with gusts as high as 25 kt. Isolated showers. Seas 1 ft or less.

Thursday Night

ENE wind 6 to 8 kt. Mostly clear. Seas 1 ft or less.

Friday

ENE wind 8 to 14 kt, with gusts as high as 24 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

ENE wind 6 to 8 kt. Partly cloudy. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.