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

87°F

31°C

Humidity 27%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index84°F (29°C)
Last update 05 Oct 08:16 PM PDT
Extended Forecast for

5 Miles S Riverside Municipal CA

Extreme Heat Warning October 5, 08:38pm until October 8, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning October 5, 08:38pm until October 8, 08:00pm

    NOW until 8:00pm Thu

    Extreme Heat Warning

  • Tonight

    Low: 72 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 100 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 71. Light and variable wind becoming southeast 5 to 10 mph.

    Low: 71 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 69. West wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 72. Southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Clear, with a low around 71. Light and variable wind becoming southeast 5 to 10 mph.
Wednesday
Sunny, with a high near 99. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 69. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 97.
Thursday Night
Clear, with a low around 68.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 81.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 58.
Columbus Day
A slight chance of showers. Mostly sunny, with a high near 77.
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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:
12:17 pm PDT Oct 5, 2026
Forecast Valid:
8pm PDT Oct 5, 2026-6pm PDT Oct 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation