Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Alturas (KAAT)

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

Partly Cloudy

79°F

26°C

Humidity 34%
Wind Speed W 16 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 05:20 PM PDT
Extended Forecast for

9 Miles NNW Likely CA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 82. West northwest wind around 8 mph.

    High: 82 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm.  Mostly cloudy, then gradually becoming clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 47 °F

    Chance
    Showers then
    Clear

  • Monday

    Monday: Sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 43. West wind 5 to 9 mph becoming calm  in the evening.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. West northwest wind around 8 mph.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, then gradually becoming clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
Sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Clear, with a low around 43. West wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 85. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 47.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny and hot, with a high near 96.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Likely CA
 41.37°N 120.53°W (Elev. 4400 ft)
5:28 pm PDT Aug 17, 2025
5pm PDT Aug 17, 2025-6pm PDT Aug 24, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database