Temperature
76 F at 7 PM; 85 F at its warmest, 3 PM, and 51 F at its coolest, 5 AM.
- Now
- 76F
- 7 PM
- Highest
- 85F
- 3 PM
- Lowest
- 51F
- 5 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/March Air Reserve Base
March Air Reserve Base, California
Medium airport in Riverside County, California* WHAT...For Thursday and Friday northeast winds 25 to 35 mph with gusts 55 to 65 mph possible. Gusts over 65 mph possible near the Cajon Pass. For Saturday, winds will turn more easterly with gusts 35 to 45 mph, strongest below the San Gorgonio Pass. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult for high profile vehicles. * ADDITIONAL DETAILS...Winds will be strongest on Friday.
People are urged to secure loose objects that could be blown around or damaged by the wind.
70°
89°/56°
Clear·
Feels like 70°·Gentle breeze 9 mph N
Alert. A High Wind Warning is in force for March Air Reserve Base until 8 PM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. March Air Reserve Base is 70° and clear at 10 PM. The dew point is 41°, so the air feels dry and comfortable. Gentle breeze from the north at 9 mph.
Today and tonight. Tonight falls to about 63° by 5 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is tomorrow, near 87°, and the coolest Wednesday, near 66°. Rain is likely Tuesday (53%) and Wednesday (69%). The windiest day is tomorrow, with wind to 22 mph.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 22 minutes long, 2 minutes shorter than yesterday.
0UV Low
36Air quality
34%Humidity
0%Cloud
Now
10:00 PM
70feels70
now, clear
Today
Oct 15
8956
19mph
UV 7
Fri
Oct 16
8762
22mph
UV 7
Sat
Oct 17
8464
16mph
Sun
Oct 18
8359
UV 7
Mon
Oct 19
8259
UV 7
Tue
Oct 20
7157
53%
12mph
Wed
Oct 21
6652
69%
70°
89°56°
87°62°
84°64°
83°59°
82°59°
71°57°
66°52°
As of 10:00 PM in March Air Reserve Base, California.
Air quality
The air at March Air Reserve Base
Index 36, good, led by ozone. Read at 9 PM from its reporting area, Metro Riverside CO (CA), 12 miles off.
36Good
- Fine particles (PM2.5)21Good12.2 mi
- Ozone36Good45 ppb12.2 mi
- Coarse particles (PM10)16Good12.2 mi
- Nitrogen dioxide3Good3.8 ppb12.2 mi
- Sulfur dioxide0Good0 ppb12.2 mi
- Carbon monoxide-0.1 ppm12.2 mi
The days ahead
Highest 83, moderate, Fri Oct 16, led by fine particles. Yesterday measured 48, good.
GoodModerate
- 48YesterdayOct 14
- 44TodayOct 15
- 83FriOct 16
Smoke, the next 44 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at March Air Reserve Base
None in the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at March Air Reserve Base, the next 44 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- RIV
- ICAO
- KRIV
- IATA
- RIV
- Field elevation
- 1,536 ft
- Serves
- Riverside
- Kind
- Medium airport
- Scheduled service
- No
- Its own instrument
- RIV
- Wind now
- From 320° at 3 mph, read 15 Oct, 20:55
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 14 / 32 | 13,302 ft | 200 ft | Concrete | 149° / 329° | 3 mph head, on 32 | None |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from March AFB/Riverside (RIV), March Air Reserve Base's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 37 F, the air 24% saturated; the humidity ran from 16% at 3 PM to 75% at 5 AM.
- Dew point now
- 37F
- 7 PM
- Humidity now
- 24%
- Humidity, range
- 16 to 75%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
3 mph from the east northeast at 7 PM; at its strongest 25 mph, 3 PM, with a gust of 36 mph at 6 PM.
- Now
- 3mph
- from the east northeast
- Strongest
- 25mph
- 3 PM
- Highest gust
- 36mph
- 6 PM
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.99 inHg at 7 PM, rising 0.04 inHg over 3 hours; 0.07 inHg lower than a day before.
- Now
- 29.99inHg
- 7 PM
- 3 hours
- +0.04inHg
- rising
- 24 hours
- -0.07inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
10 miles or more every hour.
- Now
- 10+mi
- Lowest
- 10+mi
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
March AFB/Riverside: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 6 instruments nearest March Air Reserve Base, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.
measured now4 instruments
At an airfield/1.4 mi away/1,539 ft/3 ft above here
temp, wind, gust, visibility, precip, pressure
Clark RAWSCLHC1
A remote fire weather station/2.6 mi away/1,726 ft/190 ft above here
temp, wind, gust, humidity, pressure
I-15 : Jurupa AvenueCF174
Beside a road/20.3 mi away/908 ft/628 ft below here
temp, pavement temp, wind, visibility, precip
Fallbrook 5 NE53151
At a climate reference station/31.4 mi away/1,140 ft/396 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
Perris 3.1 NNECA-RV-52
In a volunteer observer's own ground/4.4 mi away/1,458 ft/78 ft below here
precip, snowfall, snow depth
At a cooperative observer's station/8.9 mi away/850 ft/686 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in California
33 places, each with its own forecast and its own instruments.
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Near March Air Reserve Base
The nearest places, each with its own forecast and the instruments nearest it.
- March ARBcommunity, 1 mi
- Mead Valleycommunity, 3 mi
- Moreno Valleycity, 3 mi
- Perriscity, 6 mi
- Woodcrestcommunity, 6 mi
- Lake Mathewscommunity, 6 mi
- Good Hopecommunity, 7 mi
- Nuevocommunity, 9 mi
- Lakeviewcommunity, 9 mi
- Romolandcommunity, 9 mi
- Riversidecity, 10 mi
- Highgrovecommunity, 10 mi
Airports near March Air Reserve Base
- Riverside Municipal AirportRAL, 12 mi
- San Bernardino International AirportSBD, 15 mi
- Hemet Ryan AirportHMT, 17 mi
- Corona Municipal AirportAJO, 20 mi
- French Valley AirportF70, 22 mi
- Chino AirportCNO, 23 mi
- Ontario International AirportONT, 23 mi
- Upland-Cable AirportCCB, 29 mi