Today
Expect mostly clear. Daytime high +68°F, overnight low +54°F. Wind gusts reach 4 mph. No precipitation expected.
Weather outside your window in Diamond Bar
local time 6:43 AM · updated just now
Today Now 6:43 AM
+54°F
Mostly clear
Hourly forecast
Today11/15
Temperature
Feels like
Cloudiness
Precip. chance
Precipitationin
Windmph
Wind gustsmph
Humidity
PressureinHg
Dew point
Visibilitymi
UV index
| Now | 7:00 AM | 8:00 AM | 9:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 1:00 PM | 2:00 PM | 3:00 PM | 4:00 PM | 5:00 PM |
|---|---|---|---|---|---|---|---|---|---|---|---|
Today
Forecast in words
Tomorrow
Tomorrow high +64°F and rain, nighttime low +55°F — 4° colder than today.
Week
This week temperatures range from +48°F to +68°F. Peak warmth: Sun, +68°F. Coldest at night — Wed, +48°F. Precipitation expected: Mon, Tue, Thu. Sunshine expected on 4 of seven days. Second half of the week is cooler.
Week vs norm
- Today 11/15 +68°F −2° usually +70°F
- Tomorrow 11/16 +64°F −6° usually +70°F
- Tue 11/17 +61°F −9° usually +70°F
- Wed 11/18 +61°F −9° usually +69°F
- Thu 11/19 +55°F −14° usually +69°F
- Fri 11/20 +59°F −10° usually +69°F
- Sat 11/21 +64°F −4° usually +69°F
- Sun 11/22 +54°F −15° usually +68°F
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, November 15
Today is cooler than usual for this date.
- Heat record +86°F 2021
- Cold record +37°F 2000
- Most precipitation 0.2 in 2023
- Strongest gust 34 mph 1993
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Diamond Bar
Today is close to the norm for November.
| Month | Daytime / Nighttime | Average | 💧 in |
|---|---|---|---|
| Jan | +63°F / +44°F | +52°F | 3.6 |
| Feb | +64°F / +45°F | +53°F | 4.0 |
| Mar | +66°F / +48°F | +56°F | 2.7 |
| Apr | +71°F / +51°F | +60°F | 1.0 |
| May | +75°F / +55°F | +64°F | 0.5 |
| Jun | +81°F / +60°F | +69°F | 0.1 |
| Jul | +87°F / +65°F | +74°F | 0.1 |
| Aug | +89°F / +67°F | +76°F | 0.1 |
| Sep | +86°F / +64°F | +73°F | 0.2 |
| Oct | +79°F / +58°F | +66°F | 0.8 |
| Nov | +70°F / +50°F | +58°F | 1.1 |
| Dec | +63°F / +44°F | +52°F | 2.6 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
6:24 AM | 4:47 PM
Moon
11:42 AM | 10:08 PM
Moon phase
Waxing crescent 34%
Next solar eclipse
Calculating for these coordinates…