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Oneil Park, CA Weather Forecast

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Clear

74°F

Updated	10:30 am
Feels Like	74°F
Humidity	59%
Wind	SW 6 mph
Barometer	29.99 in
Dew Point	59°F

Clear

23°C

Updated	10:30 am
Feels Like	23°C
Humidity	59%
Wind	SW 10 km/h
Barometer	101.6 kPa
Dew Point	15°C

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Cloud Cover	14%
uv UV Index	10
Sunrise	6:25 AM
Sunset	7:16 PM
Moonrise	9:41 PM
Moonset	11:03 AM

Civil Twilight
5:56 AM to 6:22 AM
7:15 PM to 7:41 PM
Oneil Park CA Weather - Waning Gibbous Moon

Waning Gibbous Moon

Oneil Park Weather Forecast

TODAY	TONIGHT	WEDNESDAY	WEDNESDAY NIGHT	THURSDAY	THURSDAY NIGHT	FRIDAY	FRIDAY NIGHT	SATURDAY	SATURDAY NIGHT	SUNDAY	SUNDAY NIGHT

Partly Cloudy	Mostly Clear	Mostly Sunny	Clear	Partly Cloudy	Mostly Clear	Partly Cloudy	Partly Cloudy	Chance of Showers	Chance of Showers	Chance of Showers	Chance of Showers
Hi: 84°FHi: 29°C	Lo: 62°FLo: 17°C	Hi: 83°FHi: 28°C	Lo: 62°FLo: 17°C	Hi: 83°FHi: 28°C	Lo: 63°FLo: 17°C	Hi: 84°FHi: 29°C	Lo: 63°FLo: 17°C	Hi: 85°FHi: 29°C	Lo: 68°FLo: 20°C	Hi: 86°FHi: 30°C	Lo: 69°FLo: 21°C

POP = Probability of Precipitation.

Weather Outlook Updated: 1242 AM PDT Tue Sep 01 2026 Oneil Park, CA Weather - WeatherWorld.com

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Oneil Park Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 437 AM PDT Tue Sep 1 2026

Discussion

...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

...UPDATED AVIATION DISCUSSION...

.SHORT TERM (Today through Thursday)... Cooler and drier weather will continue for inland areas through Thursday with high temperatures as much as 4 to 8 degrees below average. High temperatures will range from the mid to upper 70s near the coast to the mid 80s to lower 90s for the Inland Empire with the lower deserts aroun...

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Weather 101: Term of the Day

Serial Derecho

Type of derecho that consists of an extensive squall line which is oriented such that the angle between the mean wind direction and the squall line axis is small. A series of LEWPs and bow echoes move along the line. The downburst activity is associated with the LEWPs and bows. A Serial Derecho tends to be more frequent toward the north end of the line during the late winter and spring months. It occurs less frequently than its cousin the "progressive derecho." It is associated with a linear type mesoscale convective system that moves along and in advance of a cold front or dry line. These boundaries are often associated with a strong, migratory surface low pressure system and strong short wave trough at 500 mb (strong dynamic forcing). Lifted Indices are typically -6 or lower and the advection of dry air in the mid-troposphere (3-7 km above ground) by relatively strong winds leads to high convective instability and increased downdraft potential. The bow echoes move along the line in the direction of the mean flow, often southwest to northeast. These storms move at speeds exceeding 35 knots. Squall line movement is often less than 30 knots.