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

57°F

14°C

Humidity 94%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 01 Jan 06:16 PM PST
Extended Forecast for

5 Miles S Riverside Municipal CA

Flood Watch January 1, 07:21pm until January 1, 10:00pm
Click here for hazard details and duration
...
  •  
    Flood Watch January 1, 07:21pm until January 1, 10:00pm

    NOW until 10:00pm Thu

    Flood Watch

  • Tonight

    Low: 50 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. Calm wind becoming northeast around 5 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers between 10pm and 4am. Mostly cloudy, with a low around 54. East wind around 5 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 4pm. Cloudy, with a high near 62. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 54. South wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.

    High: 61 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, mainly before 10am. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers before 10pm. Partly cloudy, with a low around 50. Calm wind. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 64. Calm wind becoming northeast around 5 mph.
Friday Night
A slight chance of showers between 10pm and 4am. Mostly cloudy, with a low around 54. East wind around 5 mph. Chance of precipitation is 20%.
Saturday
Showers likely, mainly after 4pm. Cloudy, with a high near 62. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 54. South wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Monday
A chance of showers, mainly before 10am. Mostly cloudy, with a high near 60.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A chance of showers. Mostly cloudy, with a high near 59.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Wednesday
A chance of showers. Mostly sunny, with a high near 59.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 45.
Thursday
A slight chance of showers. Mostly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Riverside Municipal CA
 33.87°N 117.46°W (Elev. 1581 ft)
Last Update:
1:03 pm PST Jan 1, 2026
Forecast Valid:
7pm PST Jan 1, 2026-6pm PST Jan 8, 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