Riverside County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across Riverside County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 88. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
County Weather Overview
This county weather page brings together forecast coverage for Riverside County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 29 of 29 mapped cities in Riverside County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 25 to May 29, 2026
- Latest sync
- May 23, 2026 2:41 PM PDT
- Forecast office
- PSR
- Source
- NOAA / NWS
Daily Outlook
This Week in Riverside County
Memorial Day looks like the warmest upcoming period in Riverside County at 88 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Memorial Day at about 5 to 15 mph SW.
The forecast from May 25 through May 29 stays mostly dry.
Forecast Details
- Last updated
- May 23, 2026 2:41 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- PSR
- Radar station
- KNKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 64.
Sunny, with a high near 85.
Clear, with a low around 59.
Sunny, with a high near 79.
Clear, with a low around 56.
Sunny, with a high near 78.
Clear, with a low around 59.
Sunny, with a high near 83.
Clear, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Sunny
|
88°F |
5 to 15 mph
SW
|
|
Monday Night
May 25
|
Clear
|
64°F |
10 to 15 mph
W
|
|
Tuesday
May 26
|
Sunny
|
85°F |
10 to 15 mph
SW
|
|
Tuesday Night
May 26
|
Clear
|
59°F |
15 mph
W
|
|
Wednesday
May 27
|
Sunny
|
79°F |
10 to 15 mph
SW
|
|
Wednesday Night
May 27
|
Clear
|
56°F |
10 to 15 mph
W
|
|
Thursday
May 28
|
Sunny
|
78°F |
10 to 15 mph
W
|
|
Thursday Night
May 28
|
Clear
|
59°F |
10 to 15 mph
W
|
|
Friday
May 29
|
Sunny
|
83°F |
5 to 10 mph
W
|
|
Friday Night
May 29
|
Clear
|
64°F |
5 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Riverside County.
Coverage
Forecast coverage currently spans 29 of 29 mapped cities in Riverside County.
Largest mapped city population in this region: 330,786.
