Temperature
63 F at 8 AM; 85 F at its warmest, 3 PM Thursday, and 57 F at its coolest, 5 AM.
- Now
- 63F
- 8 AM
- Highest
- 85F
- 3 PM Thursday
- Lowest
- 57F
- 5 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/Mineta San Jose International Airport
Now. Mineta San Jose International Airport is 64° and clear at 9 AM. The dew point is 42°, so the air feels dry and comfortable. Light breeze from the southeast at 4 mph.
Today and tonight. It warms to about 89° by 3 PM. Tonight falls to about 60° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 6, high. Unprotected skin can burn in under half an hour. Air quality is moderate (index 55): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is tomorrow, near 88°, and the coolest Monday, near 68°. Rain is possible Tuesday (36%) and Wednesday (32%).
The sky tonight. The sun sets at 6:29 PM. The Moon is a waxing crescent, 34% lit, and sets at 10:38 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-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 14 minutes long, 2 minutes shorter than yesterday.
As of 9:00 AM in Mineta San Jose International Airport, California.
Air quality
Index 55, moderate, led by fine particles. Read at 9 AM from its reporting area, San Jose (CA), 3 miles off.
Highest 54, moderate, today, led by ozone. Yesterday measured 58, moderate.
Little smoke near the ground through Sun 5 AM: the index from smoke stays at 11 or under.
Precipitation
None in the last 3 days, to Fri 8 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 10 miles or more through Sun 5 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 12L / 30R | 11,000 ft | 150 ft | Concrete | 139° / 319° | 6 mph head, on 12L | 1 mph from the left |
| 12R / 30L | 11,000 ft | 150 ft | Concrete | 139° / 319° | 6 mph head, on 12R | 1 mph from the left |
Measured here
Every hour from San Jose INTL A (SJC), Mineta San Jose International Airport's own instrument, measure by measure, on the field's own clock.
63 F at 8 AM; 85 F at its warmest, 3 PM Thursday, and 57 F at its coolest, 5 AM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 41 F, the air 44% saturated; the humidity ran from 18% at 3 PM Thursday to 55% at 4 AM.
How it is measured: Humidity variables, Field Book FB-WAT-002
5 mph from the south southeast at 9 AM; at its strongest 9 mph, 5 PM Thursday, and no gust reported.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.09 inHg at 9 AM, steady over 3 hours; 0.05 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
10 miles or more every hour.
How it is measured: Fog types, Field Book FB-WAT-020
None measured in the gauge in the last 24 hours.
How it is measured: ASOS, Field Book FB-INS-002
San Jose INTL A: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Mineta San Jose International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.
measured now3 instruments
At an airfield/0.3 mi away/56 ft/6 ft below here
temp, wind, gust, visibility, precip, pressure
San Jose RAWSRJSC1
A remote fire weather station/7.2 mi away/863 ft/801 ft above here
temp, wind, gust, humidity, pressure
I-580 - I-205CF133
Beside a road/32.7 mi away/301 ft/239 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Santa Clara 1.6 NECA-SC-77
In a volunteer observer's own ground/1.9 mi away/22 ft/40 ft below here
precip, snowfall, snow depth
FremontFETC1
At a cooperative observer's station/13.3 mi away/39 ft/23 ft below here
snowfall, snow depth, precip, high, low
-
Snow on the ground
33 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.