National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

LAKE MATHEWS (MHEC1)

Lat: 33.81694°NLon: 117.46361°WElev: 1516.0ft.

NA

95°F

35°C

Humidity 30%
Wind Speed WNW 8 MPH
Barometer NA
Dewpoint 59°F (15°C)
Visibility NA
Heat Index94°F (34°C)
Last update 29 Aug 11:16 AM PDT
Extended Forecast for

5 Miles S Riverside Municipal CA

Extreme Heat Warning August 29, 11:51am until August 29, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 29, 11:51am until August 29, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. West wind 5 to 10 mph becoming east in the evening.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. West wind 5 to 10 mph becoming light and variable after midnight.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 63.

    Low: 63 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 96. West wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 68. West wind 5 to 10 mph becoming east in the evening.
Sunday
Sunny, with a high near 92. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 63. West wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 88. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 63.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Riverside Municipal CA
 33.87°N 117.46°W (Elev. 1581 ft)
Last Update:
12:13 am PDT Aug 29, 2026
Forecast Valid:
11am PDT Aug 29, 2026-6pm PDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation