Hourly Weather Forecast - Sinnamary, Cayenne, GF

10 PM
80°F
40%
4mph
ENE
40% Chance Rain Showers
Humidity
87%
Feels like
80°F
Dew Point
75°F
11 PM
79°F
40%
4mph
ENE
40% Chance Rain Showers
Humidity
88%
Feels like
79°F
Dew Point
75°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Tuesday's Weather Outlook

Tuesday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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