Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Alturas (KAAT)

Lat: 41.48362°NLon: 120.5615°WElev: 4383.0ft.

Clear

55°F

13°C

Humidity 43%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Jun 04:20 AM PDT
Extended Forecast for

11 Miles ENE Bieber CA

Fire Weather Watch June 19, 04:00am until June 19, 07:00pm
Click here for hazard details and duration
Fire Weather Watch
  • Today

    Today: Mostly sunny, with a high near 91. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Southwest wind 5 to 10 mph becoming light south  in the evening.

    Low: 55 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms, mainly before 2pm.  Partly sunny, with a high near 79. Calm wind becoming north 5 to 9 mph in the afternoon.

    High: 79 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 48. West southwest wind 9 to 14 mph becoming light and variable  in the evening. Winds could gust as high as 21 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon.
Tonight
Increasing clouds, with a low around 55. Southwest wind 5 to 10 mph becoming light south in the evening.
Juneteenth
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 79. Calm wind becoming north 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 48. West southwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 80. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Clear, with a low around 53.
Wednesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Bieber CA
 41.19°N 120.96°W (Elev. 4199 ft)
1:46 am PDT Jun 18, 2026
4am PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database