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

50°F

10°C

Humidity 100%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 10 Apr 12:52 AM PDT
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 2am.  Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Chance Rain

  • Friday

    Friday: Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm.  High near 52. Calm wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm.  Low around 46. South wind 5 to 7 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Rain

  • Saturday

    Saturday: Rain before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then rain after 2pm.  Snow level 5500 feet lowering to 4600 feet in the afternoon . High near 47. South southwest wind 5 to 8 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Showers

  • Saturday Night

    Saturday Night: Rain.  Snow level 4900 feet. Low around 43. Southwest wind around 6 mph becoming north northeast after midnight.  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 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely.  Snow level 4800 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.  Snow level 4300 feet. Mostly cloudy, with a high near 47.

    High: 47 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain, mainly before 11pm.  Snow level 4600 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 48. Calm wind.
Friday
Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 52. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Rain and possibly a thunderstorm. Low around 46. South wind 5 to 7 mph. 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 between 11am and 2pm, then rain after 2pm. Snow level 5500 feet lowering to 4600 feet in the afternoon . High near 47. South southwest wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Rain. Snow level 4900 feet. Low around 43. Southwest wind around 6 mph becoming north northeast after midnight. 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 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely. Snow level 4800 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. Snow level 4300 feet. Mostly cloudy, with a high near 47.
Monday Night
A chance of rain, mainly before 11pm. Snow level 4600 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
A chance of rain. Snow level 4800 feet lowering to 4300 feet. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Snow level 4400 feet rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 49.
Wednesday Night
A chance of rain. Snow level 5100 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 40.
Thursday
A slight chance of rain. Snow level 3700 feet rising to 4600 feet in the afternoon. Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
11:26 pm PDT Apr 9, 2026
1am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

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