Rancho San Diego, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Rancho San Diego, CA in one place.
Sunny, with a high near 83. Southwest wind around 10 mph.
Local Weather Overview
This forecast page for Rancho San Diego, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 18, 2026 3:14 PM PDT.
The active forecast window currently covers Jul 18 to Jul 24, 2026 for Rancho San Diego, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 24, 2026
- Latest sync
- Jul 18, 2026 3:14 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Rancho San Diego
Monday looks like the warmest upcoming period in Rancho San Diego at 86 degrees F.
Sunday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for This Afternoon at about 10 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 3:14 PM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KNKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog after 5am. Partly cloudy, with a low around 65. West wind 0 to 10 mph.
Patchy fog before 8am. Mostly sunny, with a high near 85. West wind 0 to 10 mph.
Partly cloudy, with a low around 63. Southwest wind 0 to 10 mph.
Mostly sunny, with a high near 86. Northwest wind 0 to 10 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 66.
Sunny, with a high near 86.
Mostly clear, with a low around 66.
Sunny, with a high near 85.
Partly cloudy, with a low around 67.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 67.
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 84.
A slight chance of rain showers before 11pm. Partly cloudy, with a low around 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 18
|
Sunny
|
83°F |
10 mph
SW
|
|
Tonight
Jul 18
|
Partly Cloudy then Patchy Fog
|
65°F |
0 to 10 mph
W
|
|
Sunday
Jul 19
|
Patchy Fog then Mostly Sunny
|
85°F |
0 to 10 mph
W
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
63°F |
0 to 10 mph
SW
|
|
Monday
Jul 20
|
Mostly Sunny
|
86°F |
0 to 10 mph
NW
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
66°F |
0 to 10 mph
NW
|
|
Tuesday
Jul 21
|
Sunny
|
86°F |
0 to 10 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
66°F |
0 to 10 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
85°F |
0 to 10 mph
W
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
67°F |
0 to 10 mph
NW
|
|
Thursday
Jul 23
|
Mostly Sunny
|
86°F |
0 to 10 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
67°F |
0 to 10 mph
W
|
|
Friday
Jul 24
|
Mostly Sunny then Slight Chance Rain Showers
|
84°F |
0 to 10 mph
W
|
|
Friday Night
Jul 24
|
Slight Chance Rain Showers then Partly Cloudy
|
66°F |
0 to 5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Rancho San Diego.