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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

Mount Shasta (KMHS)

Lat: 41.31494°NLon: 122.31702°WElev: 3540.0ft.

Clear

61°F

16°C

Humidity 59%
Wind Speed ENE 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 18 Jun 12:56 AM PDT
Extended Forecast for

Mt Shasta CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, then gradually becoming sunny, with a high near 93. South southeast wind 3 to 7 mph.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 55. Southeast wind around 7 mph.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms, mainly between 11am and 1pm. Partly sunny, with a high near 82. Southeast wind 6 to 10 mph.

    High: 82 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 51. Northwest wind around 6 mph becoming southeast after midnight.

    Low: 51 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °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 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 58. Light and variable wind.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, then gradually becoming sunny, with a high near 93. South southeast wind 3 to 7 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 55. Southeast wind around 7 mph.
Juneteenth
A 40 percent chance of showers and thunderstorms, mainly between 11am and 1pm. Partly sunny, with a high near 82. Southeast wind 6 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 51. Northwest wind around 6 mph becoming southeast after midnight.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 87.
Sunday Night
Clear, with a low around 53.
Monday
Sunny, with a high near 92.
Monday Night
Clear, with a low around 56.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mt Shasta CA
 41.32°N 122.33°W (Elev. 3547 ft)
Last Update:
1:46 am PDT Jun 18, 2026
Forecast Valid:
1am PDT Jun 18, 2026-6pm PDT Jun 24, 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

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Chance of Precipitation