Grand Terrace, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Terrace, CA in one place.
Sunny, with a high near 92. West wind 5 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Grand Terrace, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 4:26 AM PDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Grand Terrace, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 4:26 AM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Terrace
Wednesday looks like the warmest upcoming period in Grand Terrace at 97 degrees F.
Sunday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph W.
The forecast from Jul 18 through Jul 23 stays mostly dry.
Forecast Details
- Last updated
- Jul 17, 2026 4:26 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KSOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 68. West wind 0 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 92.
Mostly clear, with a low around 66.
Mostly sunny, with a high near 92.
Mostly clear, with a low around 67.
Sunny, with a high near 93.
Mostly clear, with a low around 67.
Sunny, with a high near 97.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 97.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
92°F |
5 to 15 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
68°F |
0 to 10 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
92°F |
0 to 10 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
66°F |
0 to 10 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
0 to 10 mph
W
|
|
Monday Night
Jul 20
|
Mostly Clear
|
67°F |
0 to 10 mph
W
|
|
Tuesday
Jul 21
|
Sunny
|
93°F |
0 to 10 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
67°F |
0 to 10 mph
W
|
|
Wednesday
Jul 22
|
Sunny
|
97°F |
0 to 10 mph
W
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
70°F |
0 to 10 mph
W
|
|
Thursday
Jul 23
|
Mostly Sunny
|
97°F |
0 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Terrace.
