Weather for San Jose, California
Current Weather
Humidity: 43%
Feels Like: 76.9°F
Wind: SW 3.1 mph
Wind Gusts: 3.6 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 4.3
Five Day Weather Forecast
Thu
H: 89°F
L: 61°F
Fri
H: 88°F
L: 55°F
Sat
H: 90°F
L: 54°F
Sun
H: 88°F
L: 53°F
Mon
H: 96°F
L: 58°F
Air Quality
Nitrogen Dioxide: 15.73 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 63 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:09 PM
Daylight: 12 hrs 17 mins
Moon Transit: 10:48 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Best Times for Fishing or Hunting
Major Periods
6:19 PM - 8:49 PM10:18 AM - 12:48 AM
Minor Periods
5:21 PM - 6:51 PM3:05 AM - 4:35 AM
Action Rating: 3 out of 5
Flood Watch issued September 18 at 6:22AM PDT until September 19 at 8:00PM PDT by NWS Hanford CA
Effective: Thu September 18, 2025, 6:22 AM
Expires: Thu September 18, 2025, 2:30 PM
* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Sierra Nevada including the Basin and French Burn Scars and the Garnet Fire. * WHERE...A portion of central California, including the following areas, Fresno-Tulare Foothills, Fresno-Tulare Lower Sierra, Grant Grove Area, Kaiser to Rodgers Ridge, Kings Canyon NP, Mariposa Madera Foothills, Mariposa-Madera Lower Sierra, San Joaquin River Canyon, Sequoia NP, Upper San Joaquin River, Yosemite NP outside of the valley and Yosemite Valley. * WHEN...From 11 AM PDT this morning through Friday evening. * IMPACTS...Heavy rainfall over the Sierra Nevada including the Basin and French Burn Scars and the Garnet Fire is expected up to and during the period of the watch. Residents near the Basin and French Burn Scars and the Garnet Fire should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall in thunderstorms over the Sierra Nevada including the burn scars, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Weather Forecast
Average Temperature: 73.7°F
Average Humidity: 47%
Wind: 6.3 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 38.12 μg/m3
Sulphur Dioxide: 8.35 μg/m3
Ozone: 61.28 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:09 PM
Daylight: 12 hrs 17 mins
Moon Transit: 10:48 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Best Times for Fishing or Hunting
Major Periods
6:19 PM - 8:49 PM10:18 AM - 12:48 AM
Minor Periods
5:21 PM - 6:51 PM3:05 AM - 4:35 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 71.3°F
Average Humidity: 69%
Wind: 6.7 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 18.46 μg/m3
Sulphur Dioxide: 3.63 μg/m3
Ozone: 58.16 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:08 PM
Daylight: 12 hrs 15 mins
Moon Transit: 11:34 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%
Best Times for Fishing or Hunting
Major Periods
7:04 PM - 9:34 PM11:04 AM - 1:34 PM
Minor Periods
5:47 PM - 7:17 PM4:11 AM - 5:41 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 68.5°F
Average Humidity: 69%
Wind: 7.4 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 40 μg/m3
Sulphur Dioxide: 6.03 μg/m3
Ozone: 57.04 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:06 PM
Daylight: 12 hrs 13 mins
Moon Transit: 12:17 AM
Moonset: 6:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
7:46 PM - 10:16 PM11:47 AM - 2:17 PM
Minor Periods
6:10 PM - 7:40 PM5:14 AM - 6:44 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 68.1°F
Average Humidity: 58%
Wind: 8.7 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 28.2 μg/m3
Sulphur Dioxide: 6.22 μg/m3
Ozone: 60 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:05 PM
Daylight: 12 hrs 10 mins
Moon Transit: 12:58 AM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
8:27 PM - 10:57 PM12:28 AM - 2:58 PM
Minor Periods
6:31 PM - 8:01 PM6:16 AM - 7:46 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 73.7°F
Average Humidity: 35%
Wind: 6.9 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 58.82 μg/m3
Sulphur Dioxide: 7.22 μg/m3
Ozone: 48.62 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:03 PM
Daylight: 12 hrs 8 mins
Moon Transit: 1:38 PM
Moonset: 7:23 PM
Moon Phase: New
Moon Illumination: 2.9%
Best Times for Fishing or Hunting
Major Periods
9:07 PM - 11:37 PM1:08 PM - 3:38 PM
Minor Periods
6:53 PM - 8:23 PM7:16 AM - 8:46 AM
Action Rating: 5 out of 5