Mount Sinai, LA Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

Mostly Clear with Mist and Fog 63°F
Feels Like 63°F  
Humidity 1% Dew Point -26°F Wind Calm Barometer 29.88 in.
Report from a MADIS/MESONET weather station 1.7 mi. NE of central Mount Sinai
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Point Forecast at a Glance

WedDec 17
Wed Dec 17: Thunderstorms, Low 60F
60%
 
60
ThuDec 18
Thu Dec 18: Thunderstorms, High 74F, Low 50F
60%
74
50
FriDec 19
Fri Dec 19: Sunny, High 60F, Low 47F
60
47
SatDec 20
Sat Dec 20: Sunny, High 71F, Low 58F
71
58
SunDec 21
Sun Dec 21: Showers, High 72F, Low 56F
20%
72
56
MonDec 22
Mon Dec 22: Mostly Sunny, High 68F, Low 56F
68
56
TueDec 23
Tue Dec 23: Sunny, High 72F, Low 56F
72
56

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7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 60°F to 74°F. Some rain possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 6°F above the historical average for December. Normal highs for this period are around 64°F with lows around 46°F.

This Date in Weather History

1944 - Typhoon Cobra, also known as the Typhoon of 1944 or Halsey's Typhoon, was the United States Navy designation for a tropical cyclone that struck the Task Force 38 in the during World War II in the Pacific. The typhoon was first observed on December 17 as it surprised a fleet of ships in the open waters of the western Pacific Ocean. Sustained winds associated with the storm were up to 100 mph with gusts to 140 mph. On December 18, the small but violent typhoon hit the Task Force while many of the ships were attempting to refuel. Due to the extreme seas and winds, three destroyers capsized and went down with practically all hands, while a cruiser, five aircraft carriers, and three destroyers suffered serious damage. Approximately 790 officers and men were lost or killed with another 80 injured. This storm inflicted more damage on the Navy than any storm since the hurricane at Apia, Samoa, in 1889.

More on this and other weather history

Mount Sinai, LA 7 Day Weather Forecast Details

Wednesday Dec 17

Thunderstorms

Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Dec 18

Thunderstorms

Day: Showers and thunderstorms likely before 2pm, then a slight chance of showers after 5pm. Patchy dense fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Partly Cloudy

Night: Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

Friday Dec 19

Sunny

Day: Sunny, with a high near 60. North wind 5 to 10 mph, with gusts as high as 20 mph.

Mostly Clear

Night: Mostly clear, with a low around 47. Calm wind becoming southeast around 5 mph.

Saturday Dec 20

Sunny

Day: Sunny, with a high near 71. South wind 5 to 10 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 58. South wind around 5 mph becoming calm in the evening.

Sunday Dec 21

Showers

Day: A 20 percent chance of showers after noon. Mostly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the morning.

Mostly Cloudy

Night: Mostly cloudy, with a low around 56. East wind around 5 mph.

Monday Dec 22

Mostly Sunny

Day: Mostly sunny, with a high near 68. East wind 5 to 10 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 56. East wind around 5 mph.

Tuesday Dec 23

Sunny

Day: Sunny, with a high near 72. East wind around 5 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.

Wednesday Dec 24

Mostly Sunny

Day: Mostly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.