Rancho San Diego, CA Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Rancho San Diego, CA in one place.
Patchy fog. Clear, with a low around 63. Northeast wind 0 to 5 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: Oct 19, 2026 4:17 AM PDT.
The active forecast window currently covers Oct 19 to Oct 25, 2026 for Rancho San Diego, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 19 to Oct 25, 2026
- Latest sync
- Oct 19, 2026 4:17 AM 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 84 degrees F.
Thursday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 19, 2026 4:17 AM PDT
- Coverage
- 7 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 before 8am. Sunny, with a high near 84. Southwest wind 0 to 10 mph, with gusts as high as 20 mph.
Patchy fog after 2am. Mostly clear, with a low around 61. South wind 0 to 5 mph.
Patchy fog before 8am. Sunny, with a high near 81. Southeast wind 0 to 10 mph, with gusts as high as 20 mph.
Patchy fog after 11pm. Partly cloudy, with a low around 60. South wind 0 to 5 mph.
Patchy fog before 11am, then rain showers likely. Mostly sunny, with a high near 77. Chance of precipitation is 60%.
Rain showers likely before 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 59.
Showers and thunderstorms. Partly sunny, with a high near 69.
A chance of rain showers before 5am. Partly cloudy, with a low around 55.
Sunny, with a high near 71.
Mostly clear, with a low around 55.
Sunny, with a high near 78.
Mostly clear, with a low around 57.
Sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 19
|
Patchy Fog
|
63°F |
0 to 5 mph
NE
|
|
Monday
Oct 19
|
Patchy Fog then Sunny
|
84°F |
0 to 10 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Clear then Patchy Fog
|
61°F |
0 to 5 mph
S
|
|
Tuesday
Oct 20
|
Patchy Fog then Sunny
|
81°F |
0 to 10 mph
SE
|
|
Tuesday Night
Oct 20
|
Patchy Fog
|
60°F |
0 to 5 mph
S
|
|
Wednesday
Oct 21
|
Rain Showers Likely
|
77°F |
5 to 15 mph
S
|
|
Wednesday Night
Oct 21
|
Showers And Thunderstorms
|
59°F |
5 to 10 mph
SW
|
|
Thursday
Oct 22
|
Showers And Thunderstorms
|
69°F |
5 to 10 mph
SW
|
|
Thursday Night
Oct 22
|
Chance Rain Showers
|
55°F |
5 to 10 mph
NW
|
|
Friday
Oct 23
|
Sunny
|
71°F |
5 to 10 mph
NW
|
|
Friday Night
Oct 23
|
Mostly Clear
|
55°F |
5 to 10 mph
N
|
|
Saturday
Oct 24
|
Sunny
|
78°F |
0 to 5 mph
NW
|
|
Saturday Night
Oct 24
|
Mostly Clear
|
57°F |
5 to 10 mph
N
|
|
Sunday
Oct 25
|
Sunny
|
79°F |
0 to 5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Rancho San Diego.