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

LAKE MATHEWS (MHEC1)

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

NA

67°F

19°C

Humidity 63%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 04 Sep 11:16 PM PDT
Extended Forecast for

5 Miles S Riverside Municipal CA

  • Overnight

    Overnight: Clear, with a low around 60. Southeast wind around 5 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 11pm. Increasing clouds, with a low around 67. Northwest wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers before 11pm. Partly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 66 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 60. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A slight chance of showers after 11pm. Increasing clouds, with a low around 67. Northwest wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Sunday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Labor Day
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 89.
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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:
12:04 am PDT Sep 5, 2026
Forecast Valid:
12am PDT Sep 5, 2026-6pm PDT Sep 11, 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