Live Weather & Forecast
Weather in Grand Terrace
California, United States · Real-time conditions & 3-day outlook
14°C
Feels like 13°C
56°F / Feels 55°F
Overcast
Grand Terrace, California
🌞 Daytime
Updated: 2026-04-12 06:45
Humidity
63%
Wind
12.2 km/h SSE
Wind Gust
14.1 km/h
Pressure
1014 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0.03 mm
Cloud Cover
100%
Dew Point
8.8°C
Wind Degree
162°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
164.9 μg/m³
NO₂
4.8 μg/m³
O₃
76 μg/m³
SO₂
2.4 μg/m³
PM 2.5
2.9 μg/m³
PM 10
3.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Grand Terrace, California
12 AM
14°
Clear
1 AM
14°
Cloudy
2 AM
14°
Partly Cloudy
3 AM
13°
Partly Cloudy
4 AM
13°
Clear
5 AM
13°
Overcast
6 AM
14°
Overcast
7 AM
14°
Light drizzle
8 AM
14°
Cloudy
9 AM
15°
Partly Cloudy
10 AM
17°
Overcast
11 AM
16°
Overcast
12 PM
14°
Patchy light drizzle
1 PM
13°
Light rain
2 PM
14°
Patchy light drizzle
3 PM
14°
Overcast
4 PM
13°
Cloudy
5 PM
13°
Cloudy
6 PM
12°
Partly Cloudy
7 PM
12°
Partly Cloudy
8 PM
11°
Partly Cloudy
9 PM
11°
Cloudy
10 PM
11°
Cloudy
11 PM
10°
Patchy rain nearby
3-Day Forecast
Daily overview for Grand Terrace, California
Today
Patchy rain nearby
18°
/
11°
🌧️ 85% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 19.4 km/h
🌧️ Total precip: 2.5 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:19 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Partly Cloudy
14°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:20 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
19°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 67%
💨 Max wind: 14 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:19 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Grand Terrace
Plan your trip to Grand Terrace, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Grand Terrace?
Current conditions in Grand Terrace: Overcast, temperature 14°C, humidity 63%.
What is the best time to visit Grand Terrace?
The best time to visit Grand Terrace is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grand Terrace?
Grand Terrace is located at approximately 34° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grand Terrace?
The wettest period in Grand Terrace is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grand Terrace?
For visits to Grand Terrace during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grand Terrace in?
Grand Terrace is located in United States, in the state of California.
What are the public holidays in Grand Terrace in 2026?
View the 2026 public holidays for Grand Terrace on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grand Terrace?
The weather forecast for Grand Terrace uses coordinates 34.0339, -117.3138.