San Luis Reservoir, CA Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

41°F
Feels Like 38°F  
Humidity N/A Dew Point N/A Wind ESE 4 MPH Gusts 5 Barometer N/A
Solar Rad 15 w/m2
Report from a MADIS/MESONET weather station 3.4 mi. E of central San Luis Reservoir
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Point Forecast at a Glance

SunDec 14
Sun Dec 14: Fog, High 48F, Low 47F
48
47
MonDec 15
Mon Dec 15: Partly Sunny, High 56F, Low 52F
56
52
TueDec 16
Tue Dec 16: Mostly Sunny, High 59F, Low 56F
59
56
WedDec 17
Wed Dec 17: Rain, High 61F, Low 52F
30%
61
52
ThuDec 18
Thu Dec 18: Partly Sunny, High 58F, Low 53F
58
53
FriDec 19
Fri Dec 19: Rain, High 58F, Low 54F
50%
58
54
SatDec 20
Sat Dec 20: Rain, High 56F
40%
56
 

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7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 48°F to 61°F. Unsettled weather expected with rain likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 1°F below the historical average for December. Normal highs for this period are around 58°F with lows around 38°F.

This Date in Weather History

1924 - The temperature at Helena, MT, plunged 79 degrees in 24 hours, and 88 degrees in 34 hours. The mercury plummeted from 63 above to 25 below zero. At Fairfield MT the temperature plunged 84 degrees in just 12 hours, from 63 at Noon to 21 below zero at midnight.

More on this and other weather history

San Luis Reservoir, CA 7 Day Weather Forecast Details

Sunday Dec 14

Fog

Day: Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 48. Calm wind becoming east around 5 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 47. Calm wind.

Monday Dec 15

Partly Sunny

Day: Partly sunny, with a high near 56. Calm wind becoming northeast around 5 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 52. Calm wind.

Tuesday Dec 16

Mostly Sunny

Day: Mostly sunny, with a high near 59. West southwest wind around 5 mph becoming east northeast in the morning.

Rain

Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 56. Calm wind becoming southwest around 5 mph after midnight.

Wednesday Dec 17

Rain

Day: A 30 percent chance of rain before 10am. Partly sunny, with a high near 61. Southwest wind around 5 mph becoming west northwest in the afternoon.

Mostly Cloudy

Night: Mostly cloudy, with a low around 52. West southwest wind around 5 mph.

Thursday Dec 18

Partly Sunny

Day: Partly sunny, with a high near 58. West southwest wind around 5 mph becoming east in the afternoon.

Rain

Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 53. Southwest wind around 5 mph.

Friday Dec 19

Rain

Day: A 50 percent chance of rain. Mostly cloudy, with a high near 58. Southwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

Rain Likely

Night: Rain likely. Cloudy, with a low around 54. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Dec 20

Rain

Day: A 40 percent chance of rain. Cloudy, with a high near 56. West wind around 5 mph.

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.