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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

SIARD (SIAN2)

Lat: 40.39433°NLon: 117.62567°WElev: 4600.0ft.

NA

78°F

26°C

Humidity 22%
Wind Speed NE 15 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Heat Index78°F (26°C)
Last update 17 Jun 09:38 AM PDT
Extended Forecast for

7 Miles S Unionville NV

Fire Weather Watch June 19, 08:00am until June 19, 11:00pm
Heat Advisory June 17, 09:46am until June 19, 05:00am
Click here for hazard details and duration
Fire Weather Watch
Heat Advisory
  •  
    Heat Advisory June 17, 09:46am until June 19, 05:00am

    NOW until 5:00am Fri

    Heat Advisory

  • Today

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. North wind around 15 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 93. North wind 5 to 10 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 89. Northeast wind 5 to 15 mph becoming southwest in the afternoon.

    High: 89 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Breezy, with a west wind 15 to 20 mph becoming west 5 to 10 mph after midnight.

    Low: 57 °F

    Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 93. Northwest wind 10 to 15 mph.
Tonight
Partly cloudy, with a low around 66. North wind around 15 mph.
Thursday
Sunny, with a high near 93. North wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.
Juneteenth
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 89. Northeast wind 5 to 15 mph becoming southwest in the afternoon.
Friday Night
A 50 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Breezy, with a west wind 15 to 20 mph becoming west 5 to 10 mph after midnight.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Unionville NV
 40.34°N 118.1°W (Elev. 4921 ft)
Last Update:
4:30 am PDT Jun 17, 2026
Forecast Valid:
9am PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation