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Grantville, California Weather Forecast
Grantville, California Weather
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Weather Forecast for Grantville, California : San Diego County
Issued: 2:24 am PST Dec 18, 2025 Latitude: 32.7875499 Longitude: -117.0972535 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Patchy Fog on Overnight Sunny on Thursday Sunny on Friday Morning Fog on Saturday Morning Fog on Sunday Morning Fog on Monday 20% chance of rain on Tuesday 70% chance of rain on Wednesday
Low: 53°F High: 78°F High: 76°F High: 71°F High: 72°F High: 71°F High: 69°F High: 70°F
Low: 56°F Low: 54°F Low: 54°F Low: 53°F Low: 54°F Low: 56°F  
Patchy Fog Sunny Sunny Morning Fog Morning Fog Morning Fog Rain Rain
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Current Conditions at
SAN DIEGO MONTGOMERY - (KMYF)
52°
Clear
Mist
as of 1:53 AM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 3 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SAN DIEGO INTL - (KSAN)
52°
Mostly Clear
Mist
as of 1:51 AM PST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 4 Miles
Pressure: 29.96 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Few at 700ft
Current Conditions at
MIRAMAR MCAS - (KNKX)
46°
Clear
Mist
as of 1:55 AM PST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 3 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
NORTH ISLAND NAS - (KNZY)
54°
Mostly Clear
Mist
as of 1:52 AM PST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 3 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Wind Data
3 MPH
310° Northwest
Cloud Level(s): Few at 700ft
Patchy Fog on Overnight Overnight... Patchy fog. Otherwise, partly cloudy, with a low around 53. East wind around 5 mph.

Sunny on Thursday Thursday... Sunny, with a high near 78. Northeast wind around 5 mph becoming calm.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 56. Calm wind becoming southeast around 5 mph.

Sunny on Friday Friday... Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.

Patchy Fog on Friday Night Friday Night... Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 54. Calm wind.

Morning Fog on Saturday Saturday... Patchy fog before 10am. Otherwise, mostly sunny, with a high near 71.

Patchy Fog on Saturday Night Saturday Night... Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 54.

Morning Fog on Sunday Sunday... Patchy fog before 10am. Otherwise, mostly sunny, with a high near 72.

Patchy Fog on Sunday Night Sunday Night... Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53.

Morning Fog on Monday Monday... Patchy fog before 10am. Otherwise, partly sunny, with a high near 71.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 54.

20% chance of rain Tuesday Tuesday... A chance of rain. Mostly cloudy, with a high near 69.

70% chance of rain Tuesday Night Tuesday Night... Rain likely. Mostly cloudy, with a low around 56.

70% chance of rain Wednesday Wednesday... Rain likely. The rain could be heavy at times. Cloudy, with a high near 70.

Current Radar Image


Sun Almanac for Grantville, California
Sunrise: 06:46 AM
Sunset: 4:45 PM
Civil Sunrise:06:18 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:17 AM
Astro Sunset: 6:13 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.