Weather


Riverside, California

Current Conditions

 
Temp: 54°
Dew Point: 40°
Humidity: 59%
Wind: ENE 5 mph
Visibility: 9.0 miles
Pressure: 30.01 in. +
Sky: Clear

 

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Almanac

Average High: 72°

Average Low: 44°

Record high/year: 91° (1995)

Record low/year: 24° (1931)

Sunrise: 6:29 AM

Sunset: 4:41 PM

Detailed History

Sun and Moon

Sunrise: 06:29 AM (PST)

Moon Rise: 11:39 AM (PST)

Sunset: 04:41 PM (PST)

Moon Set: 10:53 PM (PST)

Moon Phase

Today
Nov. 24
Dec. 02
Dec. 08
Dec. 16

 

Local Radar

Local Satellite


Nowcast as of 5:46 am PST on November 23, 2009

Now

Patchy dense fog with visibility less than a quarter of an mile at times will be present in low lying areas until 830 am.


 

Air Pollution

Air Pollution Forecast for Metro Riverside CO

Current Air Quality: Unhealthy for Sensitive Groups Pollutant: PM2.5
Current Air Quality: Good Pollutant: OZONE
Mon Air Quality: Good Pollutant: NO2
Mon Air Quality: Good Pollutant: OZONE

Next 12 Hours

 
8  am
11  am
2  pm
5  pm
8  pm
Clear Clear
Clear Clear
Clear Clear
Clear Clear
Clear Clear
67°
76°
74°
63°
56°

 

Forecast data from the National Digital Forecast Database


5-Day Forecast

Monday Clear Hi 76° Lo 49° Clear
Tuesday Clear Hi 77° Lo 49° Clear
Wednesday Clear Hi 79° Lo 49° Clear
Thursday Clear Hi 81° Lo 49° Clear
Friday Clear Hi 72° Lo 49° Clear

 

Forecast for San Bernardino and Riverside County Valleys -The Inland Empire

Updated: 2:31 am PST on November 23, 2009

Today

Sunny. Highs 72 to 79. Winds east 15 mph becoming north in the afternoon.

 

Tonight

Clear. Lows 40 to 50. Winds east 15 mph.

 

Tuesday

Sunny. Highs 74 to 81. Winds east 15 mph becoming north in the afternoon.

 

Tuesday Night

Clear. Lows 42 to 52. Winds east 15 mph in the evening becoming light.

 

Wednesday

Sunny. Highs 76 to 83. Winds east 15 mph becoming north in the afternoon.

 

Wednesday Night

Clear. Lows 42 to 52.

 

Thanksgiving Day

Sunny. Highs 78 to 84.

 

Thursday Night

Mostly clear. Lows 42 to 52.

 

Friday

Mostly sunny. Highs 69 to 74.

 

Friday Night

Mostly clear. Lows 41 to 51.

 

Saturday

Partly cloudy. Highs 67 to 72.

 

Saturday Night

Mostly clear. Lows 40 to 49.

 

Sunday

Mostly sunny. Highs 65 to 72.

 

 

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MesoWest Riverside-Rubidoux CA US CARB, Riverside, CA

Updated: 7:00 AM PST

Temperature: 46 °F Dew Point: 39 °F Humidity: 75% Wind: WNW at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 46 °F Historical Graphs

Location: WR6G Hardman Center, Riverside, CA

Updated: 8:35 AM PST

Temperature: 60.8 °F Dew Point: 44 °F Humidity: 53% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Top of Sycamore Canyon, Riverside, CA

Updated: 8:35 AM PST

Temperature: 60.8 °F Dew Point: 34 °F Humidity: 36% Wind: NE at 2.2 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Airport Area, Riverside, CA

Updated: 8:35 AM PST

Temperature: 63.9 °F Dew Point: 40 °F Humidity: 41% Wind: ENE at 3.6 mph Pressure: 29.26 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: HADS E STREET PRECIP GAUGE AT SAN BER CA US USGS, San Bernardino, CA

Updated: 7:45 AM PST

Temperature:  °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: North MoVal - Ironwood/Indian, Moreno Valley, CA

Updated: 8:20 AM PST

Temperature: 56.1 °F Dew Point: 36 °F Humidity: 46% Wind: Calm Pressure: 28.17 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Sierra and Foothill, Fontana, CA

Updated: 8:35 AM PST

Temperature: 66.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Windchill: - Historical Graphs

Location: La Sierra, Riverside, CA

Updated: 8:35 AM PST

Temperature: 66.7 °F Dew Point: 41 °F Humidity: 39% Wind: NNW at 2.3 mph Pressure: 29.32 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: RAWS CLARK CA US, Riverside, CA

Updated: 7:54 AM PST

Temperature: 55 °F Dew Point: 47 °F Humidity: 75% Wind: SE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Arlington Heights, Riverside, CA

Updated: 8:33 AM PST

Temperature: 55.5 °F Dew Point: 43 °F Humidity: 62% Wind: ESE at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Rialto, Rialto, CA

Updated: 8:35 AM PST

Temperature: 67.0 °F Dew Point: 29 °F Humidity: 24% Wind: NNW at 33.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: MesoWest San Bernardino CA US CARB, San Bernardino, CA

Updated: 7:00 AM PST

Temperature: 44 °F Dew Point: 37 °F Humidity: 75% Wind: NNW at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 44 °F Historical Graphs

Location: MesoWest Fontana-Arrow Highway CA US CARB, Fontana, CA

Updated: 7:00 AM PST

Temperature: 50 °F Dew Point: 41 °F Humidity: 72% Wind: NNW at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Oaktree Development Co., Redlands, CA

Updated: 8:34 AM PST

Temperature: 59.0 °F Dew Point: 40 °F Humidity: 49% Wind: SSE at 1.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Smiley Heights, Redlands, CA

Updated: 6:35 AM WSDT

Temperature: 57.6 °F Dew Point: 38 °F Humidity: 48% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Lake Hills Reserve, Riverside, CA

Updated: 8:35 AM PST

Temperature: 61.1 °F Dew Point: 35 °F Humidity: 38% Wind: NNE at 10.5 mph Pressure: 28.74 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Redlands., Redlands, CA

Updated: 8:35 AM PST

Temperature: 57.3 °F Dew Point: 42 °F Humidity: 56% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: HADS GILBERT STREET PRECIP GAGE AT SA CA US USGS, San Bernardino, CA

Updated: 8:00 AM PST

Temperature:  °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: APRSWXNET Redlands CA US, Redlands, CA

Updated: 8:19 AM PST

Temperature: 48 °F Dew Point: 44 °F Humidity: 86% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 48 °F Historical Graphs

Location: Citrus Heights, Fontana, CA

Updated: 8:34 AM PST

Temperature: 66.9 °F Dew Point: 21 °F Humidity: 17% Wind: NNE at 12.8 mph Pressure: 28.50 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Victoria Gardens/Etiwanda, Rancho Cucamonga, CA

Updated: 8:35 AM PST

Temperature: 57.4 °F Dew Point: 29 °F Humidity: 34% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Providence Ranch, Corona, CA

Updated: 8:35 AM PST

Temperature: 57.0 °F Dew Point: 45 °F Humidity: 64% Wind: Calm Pressure: 29.41 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: RAWS CORONA CA US, Corona, CA

Updated: 7:11 AM PST

Temperature: 51 °F Dew Point: 40 °F Humidity: 65% Wind: ESE at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: MesoWest Redlands-Dearborn CA US CARB, Redlands, CA

Updated: 7:00 AM PST

Temperature:  °F Dew Point: - Humidity: - Wind: SE at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: RAWS LAKE MATHEWS CA US, Corona, CA

Updated: 7:16 AM PST

Temperature: 55 °F Dew Point: 36 °F Humidity: 49% Wind: South at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: 210/15 fwys, Rancho Cucamonga, CA

Updated: 8:35 AM PST

Temperature: 67.1 °F Dew Point: 29 °F Humidity: 24% Wind: East at 23.4 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Milliken/Mountain View, Rancho Cucamonga, CA

Updated: 8:30 AM PST

Temperature: 54.3 °F Dew Point: 39 °F Humidity: 56% Wind: Calm Pressure: 28.70 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: Corona, CA

Updated: 8:32 AM PST

Temperature: 62.1 °F Dew Point: 41 °F Humidity: 46% Wind: East at 7.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

Location: NonFedAWOS REDLANDS CA US SUPERAWOS, Redlands, CA

Updated: 7:55 AM PST

Temperature: 57 °F Dew Point: 30 °F Humidity: - Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Windchill: - Historical Graphs

MSN Maps of:

Temperature Dew Point Humidity Wind Pressure Hourly Precipitation -

NWS Forecaster Discussion




799 
fxus66 ksgx 231030 
afdsgx 


Area forecast discussion 
National Weather Service San Diego California 
230 am PST Monday Nov 23 2009 


Synopsis...high pressure aloft and weak offshore flow will bring 
fair weather with a warming trend through Thanksgiving day. Cooler 
toward next weekend as a low pressure trough approaches from the 
northwest. 


&& 


Discussion...for southwest California including San Diego... 
Orange...southwest San Bernardino and West Riverside counties. 


Upper level high pressure and offshore flow will dominate our 
weather through Thanksgiving...bringing much warmer weather and 
local gusty winds below the passes and canyons. Modest increases in 
500 mb heights and 850 mb temperatures will result in a few degrees of 
warming each day...with maximum temperatures topping out at about 10 degrees 
above seasonal averages by Thanksgiving day. Skies will be mostly 
clear as dry offshore flow scours out the marine layer. 


The upcoming offshore flow will be another gradient driven event. 
Upper level support will be lacking...and thermal/pressure gradients 
are expected to be weak to moderate. Wind gusts below the passes and 
canyons will generally remain below 30 miles per hour...however just as in the 
previous gradient driven event...isolated/occasional gusts from 
40-50 miles per hour are possible in the windiest locations. 


Very dry air is expected with the offshore flow this week. Inland 
humidities will fall below 10 percent each day beginning Tuesday and 
continuing through Thursday. The combination of locally breezy 
conditions and very low humidities will elevate the fire weather 
hazard. 


Long range...the GFS and European model (ecmwf) forecasts for later this week show the 
ridge breaking down Friday ahead of a potent shortwave that will 
bring substantial cooling through Saturday. Behind this trough a 
colder...potentially windy offshore pattern is setting up for next 
Sunday and Monday. 


&& 


Aviation... 
231000 UTC...scattered cirrostratus at or above fl250 currently over 
mountains. Marine layer depth currently between fl010-fl015 with 
visibility at or below 1-3sm in hz/br. Could see some ground fog with 
visibility below 1/2sm in fog between 23/12-23/16 UTC in and around 
reservoirs/river valleys and at or below fl003 near the coast. Expect 
northeast winds 5-15 knots after this will scour out marine air and 
prevail for next 60 hours. 


&& 


Sgx watches/warnings/advisories...none. 


&& 


$$ 


Public...scv 
aviation...Balfour 












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