What is the 7-day weather forecast for Mount Sinai, LA?

The 7-day forecast for Mount Sinai shows highs from 61 to 74 degrees and lows from 48 to 62 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Mount Sinai, LA this week?

Yes, rain is possible in Mount Sinai this week. Precipitation chances: Wednesday (70% chance), Thursday (60% chance).

How accurate is the Mount Sinai weather forecast?

WeatherForYou provides highly accurate Mount Sinai forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Mount Sinai, LA Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

60°F
Feels Like 60°F

Humidity 89% Dew Point 56°F Wind ESE 6 MPH Gusts 11 Barometer 30 in.

Report from a MADIS/MESONET weather station 2.1 mi. N of central Mount Sinai
at 8:00 PM Wed, Dec 17, 2025

Point Forecast at a Glance

WedDec 17

70%

ThuDec 18

60%

FriDec 19

SatDec 20

SunDec 21

MonDec 22

TueDec 23

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 61°F to 74°F. Some rain possible with at least 2 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

1884 - A three week blockade of snow began at Portland, OR. A record December total of 34 inches was received.

Mount Sinai, LA 7 Day Weather Forecast Details

Wednesday Dec 17

Night: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog before 11pm. Otherwise, cloudy, with a steady temperature around 62. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Dec 18

Day: Showers and thunderstorms likely, mainly before noon. Patchy 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 quarter and half of an inch possible.

Night: Partly cloudy, with a low around 52. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

Friday Dec 19

Day: Sunny, with a high near 61. North wind 5 to 10 mph.

Night: Mostly clear, with a low around 48. Northeast wind around 5 mph becoming calm.

Saturday Dec 20

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

Night: Partly cloudy, with a low around 57. South wind around 5 mph.

Sunday Dec 21

Day: Mostly sunny, with a high near 73. South wind around 5 mph.

Night: Partly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.

Monday Dec 22

Day: Mostly sunny, with a high near 70. East wind around 5 mph.

Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.

Tuesday Dec 23

Day: Sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the morning.

Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.

Wednesday Dec 24

Day: Mostly sunny, with a high near 71. 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.

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