Orange County, CA Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Orange County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 72.
County Weather Overview
This county weather page brings together forecast coverage for Orange County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 34 of 35 mapped cities in Orange County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 25 to May 28, 2026
- Latest sync
- May 22, 2026 9:15 AM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Orange County
Memorial Day looks like the warmest upcoming period in Orange County at 72 degrees F.
Monday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Memorial Day at about 0 to 10 mph W.
The forecast from May 25 through May 28 stays mostly dry.
Forecast Details
- Last updated
- May 22, 2026 9:15 AM PDT
- Coverage
- 5 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KSOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 56.
Partly sunny, with a high near 70.
Mostly cloudy, with a low around 56.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Mostly Sunny
|
72°F |
0 to 10 mph
W
|
|
Monday Night
May 25
|
Partly Cloudy
|
56°F |
5 to 10 mph
SW
|
|
Tuesday
May 26
|
Partly Sunny
|
70°F |
5 to 10 mph
S
|
|
Tuesday Night
May 26
|
Mostly Cloudy
|
56°F |
5 to 10 mph
S
|
|
Wednesday
May 27
|
Mostly Sunny
|
69°F |
5 to 10 mph
S
|
|
Wednesday Night
May 27
|
Partly Cloudy
|
56°F |
5 to 10 mph
S
|
|
Thursday
May 28
|
Mostly Sunny
|
72°F |
5 to 10 mph
S
|
|
Thursday Night
May 28
|
Mostly Clear
|
56°F |
0 to 10 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Orange County.
Coverage
Forecast coverage currently spans 34 of 35 mapped cities in Orange County.
Largest mapped city population in this region: 353,676.
