10-Day Weather Forecast for San Marcos (CA)

Six-hourly outlook through Tuesday 15 September. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Sunday
6 Sep
Heavy rain
21°C (70°F)
16 mm (0.6 in)
Partly cloudy
24°C (75°F)
0.2 mm (0.01 in)
Partly cloudy
27°C (81°F)
0 mm (0 in)
Hourly ›
Monday
7 Sep
Mostly clear
24°C (75°F)
0 mm (0 in)
Mostly sunny
22°C (72°F)
0 mm (0 in)
Partly cloudy
30°C (86°F)
0 mm (0 in)
Mostly clear
28°C (82°F)
0 mm (0 in)
Hourly ›
Tuesday
8 Sep
Partly cloudy
23°C (73°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Mostly clear
28°C (82°F)
0 mm (0 in)
Hourly ›
Wednesday
9 Sep
Mostly clear
23°C (73°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
33°C (91°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Hourly ›
Thursday
10 Sep
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
31°C (88°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Hourly ›
Friday
11 Sep
Clear skies
24°C (75°F)
0 mm (0 in)
Partly cloudy
22°C (72°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Saturday
12 Sep
Clear skies
22°C (72°F)
0 mm (0 in)
Cloudy
21°C (70°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Mostly clear
24°C (75°F)
0 mm (0 in)
Hourly ›
Sunday
13 Sep
Cloudy
21°C (70°F)
0.2 mm (0.01 in)
Cloudy
19°C (66°F)
0 mm (0 in)
Mostly sunny
24°C (75°F)
0 mm (0 in)
Partly cloudy
23°C (73°F)
0 mm (0 in)
Hourly ›
Monday
14 Sep
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
17°C (63°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Hourly ›
Tuesday
15 Sep
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in San Marcos this week?

Today's weather - Sunday 6 Sep

For Sunday the predicted weather in San Marcos is partly cloudy with significant rainfall during the morning. The maximum temperature is a warm 27°C (81°F), while the minimum temperature is a pleasant 21°C (70°F).

Tomorrow's weather - Monday 7 Sep

The forecast for San Marcos on Monday is partly cloudy. Expect highs of a warm 30°C (86°F) and lows of around 22°C (72°F).

10-Day Weather Forecast

The 10-day forecast shows that temperatures will reach 33°C (91°F) on Wednesday before declining again. During this period, expect daytime highs around 29°C (84°F) and nighttime lows around 22°C (72°F). These values are typical for September. The following 10 days will bring plenty of sunshine. Expect much more rainfall than usual (compared to average September levels), the days are characterized by mostly dry conditions. Precipitation is likely on approximately 1 day (Sun). Wind conditions will be generally calm.

Weather Forecast FAQ for San Marcos

When will be the warmest day next week?

The warmest day is expected to be Wednesday with a high of 33°C (91°F).

When will be the coldest day?

The coldest day is forecasted for Sunday with a low of 19°C (66°F).

Will it rain next week in San Marcos?

Yes, rain is expected on 1 day , specifically on Sun.

How much rainfall is expected next week?

A total of 16 mm (0.6 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 19°C (66°F) to 33°C (91°F).

More about San Marcos

Explore the full San Marcos climate overview with monthly averages, or check rainfall data and temperature by month.

San Marcos weather by month

Browse monthly averages for San Marcos: climate by month with temperature, rainfall and sunshine.

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