Riverside County Weather Forecast
Riverside County weather: 91°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Next 48 hours
Hour-by-hour temperature, precipitation chance and wind.
Best time to go outside today
7 AM - 10 AM · comfort score 8.5/10
The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best.
Weather in Riverside County right now
Source: Open-Meteo. Updated 11:59 PM, Aug 22 local time.
Active alerts for Riverside County
Heat Advisory issued August 22 at 9:43PM PDT until August 25 at 10:00AM PDT by NWS San Diego CA
Issued by NWS San Diego CA
Extreme Heat Watch issued August 22 at 9:43PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Issued by NWS San Diego CA
See the Riverside County forecast by time range
Riverside County weather - more answers
Explore Riverside County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 91°F (33°C) with clear. Humidity is 29% and wind is 6 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 11:59 PM.
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 11:59 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
