San Martin, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for San Martin, CA in one place.
Sunny, with a high near 75. East wind 1 to 7 mph.
Local Weather Overview
This forecast page for San Martin, 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: Oct 13, 2026 8:07 PM PDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for San Martin, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 8:07 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in San Martin
Friday looks like the warmest upcoming period in San Martin at 80 degrees F.
Monday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 17 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 8:07 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 56. North northeast wind 1 to 5 mph.
Sunny, with a high near 80.
Clear, with a low around 59.
Sunny, with a high near 79.
Clear, with a low around 53.
Sunny, with a high near 71.
Mostly clear, with a low around 44.
A slight chance of rain after 5pm. Mostly sunny, with a high near 60.
A slight chance of rain. Partly cloudy, with a low around 43.
A slight chance of rain. Mostly sunny, with a high near 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Sunny
|
75°F |
1 to 7 mph
E
|
|
Thursday Night
Oct 15
|
Clear
|
56°F |
1 to 5 mph
NNE
|
|
Friday
Oct 16
|
Sunny
|
80°F |
1 to 6 mph
NE
|
|
Friday Night
Oct 16
|
Clear
|
59°F |
0 to 3 mph
E
|
|
Saturday
Oct 17
|
Sunny
|
79°F |
0 to 8 mph
WSW
|
|
Saturday Night
Oct 17
|
Clear
|
53°F |
1 to 7 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
71°F |
2 to 9 mph
WSW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
44°F |
9 mph
WSW
|
|
Monday
Oct 19
|
Mostly Sunny then Slight Chance Light Rain
|
60°F |
8 to 15 mph
WSW
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain
|
43°F |
6 to 13 mph
WSW
|
|
Tuesday
Oct 20
|
Slight Chance Light Rain
|
58°F |
6 to 17 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around San Martin.