• Early AM

    Apr 21

    Lo 50°

    Cloudy

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      2%
    • Hi
      RealFeel
      75°
    more
  • Today

    Apr 21

    74°Lo 48°

    Low clouds break for some sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      4%
    • Hi
      RealFeel
      79°
  • Wed

    Apr 22

    75°Lo 45°

    Times of clouds and sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      79°
    more
  • Thu

    Apr 23

    73°Lo 45°

    Partly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      76°
    more
  • Fri

    Apr 24

    66°Lo 43°

    Partly sunny

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      69°
    more
Next Previous
Hi 74° RealFeel® 79° Precipitation 4%

Day

N

E

S

W

  • NW 7 mph
  • Gusts: 14 mph

Low clouds followed by some sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 48° RealFeel® 49° Precipitation 12%

Night

N

E

S

W

  • N 5 mph
  • Gusts: 10 mph

Partly cloudy this evening followed by low clouds late

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 74° 69° N/A 75°
Low 48° 40° N/A 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:28 of sunlight, then sets at 7:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:49 AM with 14:31 of moolight, then sets at 11:20 PM

Lucerne Weather Report

San Francisco: Clouds, Showers to Linger Ahead of Weekend

April 21, 2015; 2:20 AM ET

While cloudy conditions can be expected over the San Francisco area for the next several days, showers will not make a return until the middle of the week. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Tue. Overnight Freeze

Tue. Degree Days

Tue. Evapotranspiration