Weather in August

United States · California · 37.9788, -121.2622

Today Now 9:06 PM

+59° Mostly cloudy

Hourly forecast

Today10/21 Temperature°F Cloudiness Precipitation Windmph Wind gusts Humidity PressureinHg Dew point°F Visibilitymi UV index
Hourly forecast — August

Forecast in words

Today

Mostly cloudy throughout the day, high +59°, low +57°. Light wind, up to 2 mph. Precipitation likely — up to 100%.

Tomorrow

Tomorrow thunderstorm: daytime +64°, nighttime +55°, about 5° warmer.

Week

This week temperatures range from +50° to +79°. Peak warmth: Wed, +79°. Coldest night — Sat, around +50°. Precipitation expected: Thu. Cloudless weather for 4 days. It warms up by the end of the week.

Week vs norm

  1. Today 10/21 +59° −17° usually +76°
  2. Tomorrow 10/22 +64° −12° usually +76°
  3. Fri 10/23 +68° −8° usually +76°
  4. Sat 10/24 +72° −4° usually +75°
  5. Sun 10/25 +73° −1° usually +75°
  6. Mon 10/26 +75° +1° usually +74°
  7. Tue 10/27 +77° +3° usually +74°
  8. Wed 10/28 +79° +5° usually +73°

Difference between forecast daytime high and the 1991–2020 norm for this date.

This day, October 21

Today is cooler than usual for this date.

  • Heat record +89° 2003
  • Cold record +42° 1996
  • Most precipitation 0.3 in 1992
  • Strongest gust 38 mph 2000

Records for this calendar date, 1991-2024, ERA5 reanalysis.

Climate in August

Today is about 15° colder than usual for October.

Climate normals by month, August
Month Daytime / Nighttime Average Precipitation in
Jan +58° / +41° +48° 3.9
Feb +61° / +42° +50° 3.7
Mar +66° / +45° +54° 3.0
Apr +73° / +48° +59° 1.5
May +81° / +54° +66° 0.8
Jun +88° / +59° +72° 0.1
Jul +91° / +62° +75° 0.0
Aug +91° / +61° +74° 0.1
Sep +88° / +59° +72° 0.1
Oct +79° / +54° +64° 1.1
Nov +66° / +46° +54° 2.0
Dec +57° / +41° +48° 3.9

Climatic normals for 1991–2025 years from ERA5-Land reanalysis.

Astronomical data

Sunrise / sunset 7:19 AM | 6:18 PM
Moon 3:59 PM | 2:29 AM
Moon phase Waxing gibbous 79%
Next solar eclipse
Calculating for this city…

Weather in the region