County in California

Riverside County Weather Forecast

Riverside County weather: 91°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

🌙 91°F now🕔 1:12 AM local📅 Best: April, May, June, July, August, September and October👥 2.5 million

14-day forecast for Riverside County

Daily highs and lows, precipitation and UV.

DayConditionsHigh / LowPrecipWindUV
Sat, Aug 22🌤️ Mainly clear103° / 71°0%12 mph8
Sun, Aug 23☀️ Clear sky105° / 71°1%14 mph8
Mon, Aug 24☀️ Clear sky106° / 71°5%14 mph7
Tue, Aug 25☀️ Clear sky106° / 84°0%14 mph8
Wed, Aug 26☀️ Clear sky105° / 87°1%12 mph8
Thu, Aug 27🌦️ Light drizzle101° / 84°1% · 0,0 in11 mph8
Fri, Aug 28☁️ Overcast104° / 86°2%12 mph8
Sat, Aug 29⛅ Partly cloudy103° / 86°1%12 mph8
Sun, Aug 30🌤️ Mainly clear105° / 85°2%12 mph8
Mon, Aug 31🌤️ Mainly clear103° / 86°1%13 mph8
Tue, Sep 1☀️ Clear sky102° / 84°2%12 mph8
Wed, Sep 2☀️ Clear sky102° / 83°9%12 mph8
Thu, Sep 3☁️ Overcast101° / 83°10%13 mph8
Fri, Sep 4☁️ Overcast101° / 82°23%13 mph8

The two-week trend

Temperature trend

Steady. The second week averages within a degree of the first, so no big change is signalled.

Against the normal

The window averages 103°F against a August normal of 96°F - 39°F above.

Rainfall

The next 7 days look unusually dry - roughly 32% of a normal August week (0,0 in against 0,1 in).

What this means for Riverside County

Compared with normal

Today is slightly warmer than average for August. The forecast high of 103°F is 7°F above the 96°F typical for this month.

Rain chance explained

Rain is very unlikely today - plans do not need a backup.

Travel and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in June to August.

Worth knowing

The gap between the warmest and coldest month averages 57°F.

What to pack, what to skip

Pack for the next 7 days
  • Lightweight, light-coloured clothing and a refillable water bottle
  • Sunglasses, a brimmed hat and SPF 30+
Worth avoiding
  • Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
  • If your dates are flexible, avoid January, February and December - historically the least comfortable months here.

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 1:12 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.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
Forecast and observationsOpen-Meteo (ECMWF and national models).
Air quality and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Climate averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Weather Service.
MethodScores, 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 23, 2026 at 1:12 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

More from Davil Hofile