Riverside County, CA

Alerts

County Line
No alerts for Riverside County, CA, for the next 5 days

Briefings

No recent briefing available

From the Forecaster

Highs Tuesday

Created by the NWS San Diego WFO

One of the coolest days of the week - high temperatures run around 5-10 degrees below normal!

Map of forecast high temperatures for Southern California for Tuesday Sep 15, 2026. For the coastal areas: 73 to 79, western valleys and inland Orange County: 78 to 84, inland valleys: 81 to 87, mountains between 4000 ft and 7000 ft: 71 to 82, high desert: 85 to 93, low desert: 98 to 102.
San Diego Area Forecast Discussion

Thunderstorm Chances Through Wednesday

Created by the NWS Phoenix WFO

Thunderstorm chances will increase through Wednesday. There is a 20-40% chance of storms Tuesday morning and 20-30% chance in the afternoon. The potential highest impact day with chances for widespread thunderstorms will be Wednesday. Chances peak between 50-80% in the late morning hours. Typical thunderstorm hazards are expected with any storms that develop.

Thunderstorm outlook graphic with a map showing the probability of precipitation for this afternoon/evening (on the bottom left), a second one showing Tuesday (bottom middle), and a third showing Wednesday (bottom right). Additional details and impacts are provided above the maps.
Phoenix Area Forecast Discussion

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
risk level
out of 10
out of 10
out of 10
out of 10
out of 10
out of 10
out of 10
table legend
No risk
Low risk
High risk
See the detailed risk analysis

Weather Forecasting Office

Phoenix Forecast Office

Find a Forecast

|
recent locations
search results

Saved locations