Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

51°F

11°C

Humidity 100%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 10 Apr 03:52 AM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Overnight

    Overnight: A 20 percent chance of rain.  Mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Slight Chance
    Rain

  • Friday

    Friday: Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm.  High near 55. Calm wind becoming west southwest around 6 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers
    Likely then
    Showers

  • Friday Night

    Friday Night: Rain and thunderstorms.  Low around 47. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Snow level 5500 feet lowering to 4800 feet in the afternoon . High near 47. Southeast wind around 6 mph becoming west southwest in the afternoon.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 47 °F

    Showers

  • Saturday Night

    Saturday Night: Rain.  Snow level 4900 feet. Low around 43. Light and variable wind becoming north around 5 mph in the evening.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Sunday

    Sunday: Rain.  Snow level 4800 feet. High near 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely.  Snow level 4900 feet lowering to 4300 feet. Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 11am.  Snow level 4300 feet. Mostly cloudy, with a high near 48.

    High: 48 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain before 11pm.  Snow level 4700 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 49. Calm wind.
Friday
Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 55. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain and thunderstorms. Low around 47. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Snow level 5500 feet lowering to 4800 feet in the afternoon . High near 47. Southeast wind around 6 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Snow level 4900 feet. Low around 43. Light and variable wind becoming north around 5 mph in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. Snow level 4800 feet. High near 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely. Snow level 4900 feet lowering to 4300 feet. Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly before 11am. Snow level 4300 feet. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain before 11pm. Snow level 4700 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
A chance of rain. Snow level 5100 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Snow level 4300 feet rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Snow level 5100 feet lowering to 3900 feet after midnight . Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
11:26 pm PDT Apr 9, 2026
4am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

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