Grossmont, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grossmont, CA in one place.
Mostly sunny, with a high near 78. Southwest wind 0 to 10 mph.
Local Weather Overview
This forecast page for Grossmont, 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: May 29, 2026 2:57 PM PDT.
The active forecast window currently covers May 31 to Jun 4, 2026 for Grossmont, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 4, 2026
- Latest sync
- May 29, 2026 2:57 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grossmont
Sunday looks like the warmest upcoming period in Grossmont at 78 degrees F.
Monday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 0 to 10 mph SW.
The forecast from May 31 through Jun 4 stays mostly dry.
Forecast Details
- Last updated
- May 29, 2026 2:57 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KNKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 60.
Mostly sunny, with a high near 77.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 75.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 58.
Sunny, with a high near 77.
Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Mostly Sunny
|
78°F |
0 to 10 mph
SW
|
|
Sunday Night
May 31
|
Partly Cloudy
|
60°F |
0 to 5 mph
SW
|
|
Monday
Jun 1
|
Mostly Sunny
|
77°F |
0 to 10 mph
SW
|
|
Monday Night
Jun 1
|
Partly Cloudy
|
58°F |
0 to 5 mph
SW
|
|
Tuesday
Jun 2
|
Mostly Sunny
|
75°F |
0 to 10 mph
SW
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
58°F |
0 to 10 mph
SW
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
76°F |
0 to 10 mph
SW
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
58°F |
0 to 10 mph
SW
|
|
Thursday
Jun 4
|
Sunny
|
77°F |
0 to 10 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
59°F |
0 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grossmont.