Riverside County Weather Forecast
Riverside County weather: 74°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Live radar and satellite over Riverside County
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Radar frames: RainViewer (global composite, ~10 minute refresh). Satellite: NASA GIBS MODIS true colour, previous day. Coverage and refresh vary by region.
Active alerts for Riverside County
Heat Advisory issued August 22 at 2:56AM PDT until August 24 at 8:00PM PDT by NWS San Diego CA
Issued by NWS San Diego CA
Weather in Riverside County right now
Source: Open-Meteo. Updated 8:17 AM, Aug 22 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
See the Riverside County forecast by time range
Riverside County weather - more answers
Explore Riverside County
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Frequently asked questions
Where is Riverside County?
Riverside County is a county in California. Its coordinates are 33.9533, -117.3961. It lies in North America.
What is the weather like in Riverside County right now?
It is currently 74°F (23°C) with clear. Humidity is 60% and wind is 2 mph.
When is the best time to visit Riverside County?
April, May, June, July, August, September and October offer the most comfortable conditions in Riverside County, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Riverside County in?
Riverside County observes America/Los_Angeles (UTC-07:00). The local time is 8:17 AM.
How many people live in Riverside County?
Riverside County has a population of approximately 2.5 million.
What is the nearest airport to Riverside County?
The closest airports are Los Angeles International Airport (LAX), 58 mi away, San Diego International Airport (SAN), 85 mi away and Harry Reid International Airport (LAS), 194 mi away.
What are the top things to do in Riverside County?
Popular options include Disneyland Resort, Hollywood Sign, Santa Monica State Beach, Anza-Borrego Desert State Park, Joshua Tree National Park and Coronado Beach.
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| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 8:17 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
