Observed 3:35 AM PDT at KCRQ
San Marcos, CA weather
Rainy and 63°17°, 10°6° colder than a typical Oct 23.
Today: low 57°14° (likely 54°12° to 58°14°), high 70°21° (likely 68°20° to 71°22°).
Now 63°17°
Rain
- Wind
- 5 mph7 km/h
- From the south-southeast. 57–10 mph16 km/h through 4 PM
- Dew point
- 57°14°
- A little sticky
- UV index
- 0Low
- Moderate 11 AM–4 PM · peak 5
- Air quality
- 16Good
- Main pollutant: PM2.5 (fine particles)
- Pressure
- 30 inHg1016 hPa
- Steady over the last 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
TonightNear 58°14° · Rain 4–5 AM (20%)
This morningUp to 68°20° by 11 AM · Mostly cloudy · rain chance 30%
This afternoonNear 69°21° · rain chance 20% · Partly cloudy
TonightDown to 56°13° by 4 AM · rain chance 20% · Clear
Tomorrow morningUp to 70°21° by 11 AM · Clear
Tomorrow afternoonNear 73°23° · Clear
Tomorrow nightDown to 61°16° by 2 AM · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 4a | Showers | 58°14° (likely 55°13° to 60°16°) | 58°14° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from E, gusts 5 mph7 km/h | 97% | 71% | 0 |
| Fri 5a | Showers | 58°14° (likely 55°13° to 61°16°) | 58°14° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from E, gusts 5 mph9 km/h | 98% | 70% | 0 |
| Fri 6a | Showers | 57°14° (likely 55°13° to 60°16°) | 57°14° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from E, gusts 5 mph8 km/h | 99% | 54% | 0 |
| Fri 7a | Showers | 57°14° (likely 55°13° to 59°15°) | 57°14° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from SE, gusts 5 mph9 km/h | 99% | 79% | 0 |
| Fri 8a | Drizzle | 58°14° (likely 57°14° to 60°16°) | 59°15° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from SE, gusts 6 mph10 km/h | 98% | 62% | 0 |
| Fri 9a | Drizzle | 61°16° (likely 60°16° to 62°17°) | 61°16° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from SE, gusts 5 mph8 km/h | 95% | 56% | 1 |
| Fri 10a | Showers | 64°18° (likely 60°16° to 65°18°) | 65°18° | 30%, 0.01 in0.3 mm | 5 mph8 km/h from SE, gusts 6 mph10 km/h | 86% | 58% | 2 |
| Fri 11a | Drizzle | 68°20° (likely 60°16° to 68°20°) | 68°20° | 10% | 5 mph8 km/h from S, gusts 6 mph10 km/h | 78% | 69% | 4 |
| Fri 12p | Mostly cloudy | 70°21° (likely 65°18° to 70°21°) | 70°21° | 10% | 5 mph8 km/h from SW, gusts 7 mph11 km/h | 75% | 51% | 4 |
| Fri 1p | Mostly cloudy | 70°21° (likely 68°20° to 70°21°) | 70°21° | 10% | 5 mph8 km/h from W, gusts 7 mph11 km/h | 73% | 38% | 5 |
| Fri 2p | Mostly cloudy | 69°21° (likely 68°20° to 70°21°) | 69°21° | 10% | 10 mph16 km/h from W, gusts 10 mph16 km/h | 74% | 40% | 4 |
| Fri 3p | Sunny | 70°21° (likely 68°20° to 71°22°) | 70°21° | 10% | 10 mph16 km/h from W, gusts 11 mph18 km/h | 72% | 27% | 3 |
| Fri 4p | Sunny | 69°21° (likely 67°19° to 69°21°) | 69°21° | 10% | 10 mph16 km/h from W, gusts 12 mph19 km/h | 74% | 25% | 2 |
| Fri 5p | Sunny | 68°20° (likely 66°19° to 68°20°) | 68°20° | 20% | 10 mph16 km/h from W, gusts 12 mph19 km/h | 75% | 21% | 2 |
| Fri 6p | Clear | 65°18° (likely 64°18° to 65°18°) | 65°18° | 20% | 5 mph8 km/h from W, gusts 11 mph17 km/h | 82% | 21% | 0 |
| Fri 7p | Clear | 63°17° (likely 61°16° to 63°17°) | 63°17° | 20% | 5 mph8 km/h from W, gusts 8 mph14 km/h | 89% | 29% | 0 |
| Fri 8p | Clear | 62°17° (likely 59°15° to 62°17°) | 62°17° | 20% | 5 mph8 km/h from W, gusts 6 mph10 km/h | 88% | 28% | 0 |
| Fri 9p | Partly cloudy | 61°16° (likely 58°14° to 62°17°) | 61°16° | 20% | 0 mph0 km/h, gusts 5 mph8 km/h | 88% | 53% | 0 |
| Fri 10p | Clear | 60°16° (likely 57°14° to 60°16°) | 60°16° | 20% | 0 mph0 km/h, gusts 5 mph8 km/h | 92% | 28% | 0 |
| Fri 11p | Mostly clear | 59°15° (likely 56°13° to 59°15°) | 59°15° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 94% | 11% | 0 |
| Sat 12a | Clear | 58°14° (likely 55°13° to 59°15°) | 58°14° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 97% | 19% | 0 |
| Sat 1a | Clear | 57°14° (likely 54°12° to 58°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 12% | 0 |
| Sat 2a | Clear | 57°14° (likely 54°12° to 58°14°) | 57°14° | 0% | 5 mph8 km/h from SE, gusts 4 mph6 km/h | 96% | 9% | 0 |
| Sat 3a | Clear | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 5 mph8 km/h from SE, gusts 4 mph7 km/h | 96% | 10% | 0 |
| Sat 4a | Clear | 56°13° (likely 52°11° to 56°13°) | 57°14° | 0% | 5 mph8 km/h from SE, gusts 4 mph7 km/h | 96% | 11% | 0 |
| Sat 5a | Clear | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 98% | 9% | 0 |
| Sat 6a | Clear | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 98% | 11% | 0 |
| Sat 7a | Sunny | 55°13° (likely 51°11° to 55°13°) | 55°13° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 100% | 9% | 0 |
| Sat 8a | Sunny | 57°14° (likely 53°12° to 58°14°) | 57°14° | 0% | 5 mph8 km/h from SE, gusts 5 mph8 km/h | 99% | 7% | 0 |
| Sat 9a | Sunny | 62°17° (likely 60°16° to 63°17°) | 62°17° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 84% | 5% | 1 |
| Sat 10a | Sunny | 67°19° (likely 65°18° to 67°19°) | 67°19° | 0% | 5 mph8 km/h from N, gusts 4 mph7 km/h | 72% | 5% | 3 |
| Sat 11a | Sunny | 70°21° (likely 68°20° to 71°22°) | 71°22° | 0% | 5 mph8 km/h from NW, gusts 6 mph10 km/h | 63% | 3% | 4 |
| Sat 12p | Sunny | 73°23° (likely 70°21° to 74°23°) | 73°23° | 0% | 5 mph8 km/h from NW, gusts 8 mph12 km/h | 60% | 2% | 5 |
| Sat 1p | Sunny | 74°23° (likely 72°22° to 76°24°) | 74°23° | 0% | 10 mph16 km/h from W, gusts 10 mph16 km/h | 60% | 0% | 6 |
| Sat 2p | Sunny | 73°23° (likely 72°22° to 75°24°) | 73°23° | 0% | 10 mph16 km/h from W, gusts 11 mph18 km/h | 63% | 2% | 5 |
| Sat 3p | Sunny | 74°23° (likely 72°22° to 75°24°) | 74°23° | 0% | 10 mph16 km/h from W, gusts 11 mph18 km/h | 62% | 3% | 4 |
| Sat 4p | Sunny | 73°23° (likely 71°22° to 73°23°) | 73°23° | 0% | 10 mph16 km/h from W, gusts 12 mph19 km/h | 64% | 2% | 3 |
| Sat 5p | Sunny | 72°22° (likely 69°21° to 72°22°) | 72°22° | 0% | 10 mph16 km/h from W, gusts 12 mph19 km/h | 67% | 5% | 2 |
| Sat 6p | Clear | 69°21° (likely 66°19° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from W, gusts 10 mph15 km/h | 73% | 5% | 0 |
| Sat 7p | Clear | 68°20° (likely 63°17° to 68°20°) | 68°20° | 0% | 5 mph8 km/h from W, gusts 5 mph8 km/h | 76% | 4% | 0 |
| Sat 8p | Clear | 65°18° (likely 61°16° to 65°18°) | 65°18° | 0% | 5 mph8 km/h from W, gusts 3 mph5 km/h | 82% | 1% | 0 |
| Sat 9p | Clear | 67°19° (likely 59°15° to 67°19°) | 67°19° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 74% | 2% | 0 |
| Sat 10p | Clear | 68°20° (likely 58°14° to 68°20°) | 68°20° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 72% | 9% | 0 |
| Sat 11p | Clear | 63°17° (likely 56°13° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from SE, gusts 4 mph6 km/h | 83% | 10% | 0 |
| Sun 12a | Clear | 64°18° (likely 55°13° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from SE, gusts 4 mph6 km/h | 77% | 14% | 0 |
| Sun 1a | Mostly clear | 64°18° (likely 54°12° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from E, gusts 4 mph7 km/h | 76% | 16% | 0 |
| Sun 2a | Mostly clear | 61°16° (likely 53°12° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from E, gusts 4 mph7 km/h | 83% | 14% | 0 |
| Sun 3a | Mostly clear | 64°18° (likely 53°12° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from E, gusts 5 mph8 km/h | 72% | 6% | 0 |
Days ahead
Today, Oct 23. Drizzle. High 70°21°, low 57°14°. Typical 80°27° / 56°13°. Rain 0.06 in1.5 mm, 30% chance. Forecasts agree.
Morning
6 AM–noon
Showers, 58°14°30% chance · 0.05 in1.3 mm
Afternoon
noon–6 PM
Sunny, 70°21°Dry
Evening
6 PM–midnight
Partly cloudy, 62°17°Dry
Overnight
midnight–6 AM
Clear, 56°13°Dry
Official NWS forecast
Today: A chance of rain showers. Partly sunny, with a high near 70. South wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight: A chance of rain showers. Mostly cloudy, with a low around 57. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 68°20°–71°22°
- Low, likely
- 54°12°–58°14°
- Typical high / low
- 80°27° / 56°13°
- Wind
- 9 mph14 km/h, gusts 18 mph29 km/h
- UV peak
- 6
Tomorrow, Oct 24. Sunny. High 74°23°, low 58°14°. Typical 80°27° / 55°13°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 74°23°Dry
Evening
6 PM–midnight
Clear, 65°18°Dry
Overnight
midnight–6 AM
Mostly clear, 55°13°Dry
Official NWS forecast
Day: Sunny, with a high near 74. Northwest wind 0 to 10 mph.
Night: Mostly clear, with a low around 58. Southeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 72°22°–76°24°
- Low, likely
- 51°11°–58°14°
- Typical high / low
- 80°27° / 55°13°
- Wind
- 9 mph14 km/h, gusts 18 mph29 km/h
- UV peak
- 6
Sunday, Oct 25. Mostly sunny. High 79°26°, low 59°15°. Typical 79°26° / 55°13°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 78°26°Dry
Evening
6 PM–midnight
Clear, 65°18°Dry
Overnight
midnight–6 AM
Clear, 57°14°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 79.
Night: Mostly clear, with a low around 59.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 76°24°–81°27°
- Low, likely
- 51°11°–59°15°
- Typical high / low
- 79°26° / 55°13°
- Wind
- 12 mph20 km/h, gusts 20 mph32 km/h
- UV peak
- 6
Monday, Oct 26. Mostly sunny. High 80°27°, low 57°14°. Typical 79°26° / 55°13°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 59°15°Dry
Afternoon
noon–6 PM
Mostly sunny, 79°26°Dry
Evening
6 PM–midnight
Clear, 64°18°Dry
Overnight
midnight–6 AM
Clear, 53°12°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 80.
Night: Mostly clear, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 76°24°–81°27°
- Low, likely
- 53°12°–59°15°
- Typical high / low
- 79°26° / 55°13°
- Wind
- 11 mph18 km/h, gusts 21 mph34 km/h
- UV peak
- 5
Tuesday, Oct 27. Partly sunny. High 77°25°, low 57°14°. Typical 79°26° / 55°13°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 55°13°Dry
Afternoon
noon–6 PM
Sunny, 75°24°Dry
Evening
6 PM–midnight
Mostly clear, 61°16°Dry
Overnight
midnight–6 AM
Partly cloudy, 53°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 77.
Night: Partly cloudy, with a low around 57.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 72°22°–78°26°
- Low, likely
- 49°9°–57°14°
- Typical high / low
- 79°26° / 55°13°
- Wind
- 10 mph16 km/h, gusts 18 mph29 km/h
- UV peak
- 5
Wednesday, Oct 28. Partly sunny. High 75°24°, low 58°14°. Typical 79°26° / 54°12°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 54°12°Dry
Afternoon
noon–6 PM
Cloudy, 74°23°Dry
Evening
6 PM–midnight
Drizzle, 61°16°Dry
Overnight
midnight–6 AM
Drizzle, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 58.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 70°21°–77°25°
- Low, likely
- 48°9°–58°14°
- Typical high / low
- 79°26° / 54°12°
- Wind
- 12 mph20 km/h
- UV peak
- 5
Thursday, Oct 29. Mostly cloudy. High 72°22°, low 56°13°. Typical 79°26° / 54°12°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 59°15°Dry
Afternoon
noon–6 PM
Sunny, 71°22°Dry
Evening
6 PM–midnight
Cloudy, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 59°15°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 72.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 68°20°–73°23°
- Low, likely
- 51°11°–60°16°
- Typical high / low
- 79°26° / 54°12°
- Wind
- 10 mph16 km/h, gusts 20 mph31 km/h
- UV peak
- 5
Friday, Oct 30. Cloudy. High 71°22°, low 58°14°. Typical 79°26° / 54°12°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 62°16°Dry
Afternoon
noon–6 PM
Sunny, 72°22°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 58°14°20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 68°20°–73°23°
- Low, likely
- 53°12°–62°17°
- Typical high / low
- 79°26° / 54°12°
- Wind
- 9 mph14 km/h, gusts 19 mph30 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 69°21°, low 58°14°. Typical 78°26° / 54°12°. Rain 0.59 in15 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 61°16°30% chance
Afternoon
noon–6 PM
Cloudy, 69°20°30% chance · 0.14 in3.4 mm
Evening
6 PM–midnight
Cloudy, 65°18°30% chance · 0.52 in13 mm
Overnight
midnight–6 AM
Cloudy, 64°18°40% chance · 0.32 in8.2 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 62°17°–76°24°
- Low, likely
- 56°13°–59°15°
- Typical high / low
- 78°26° / 54°12°
- Wind
- 10 mph15 km/h, gusts 21 mph33 km/h
- UV peak
- 4
Sunday, Nov 1. Drizzle. High 72°22°, low 60°16°. Typical 78°26° / 53°12°. Rain 0.52 in13 mm, 40% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 65°18°50% chance · 0.21 in5.3 mm
Afternoon
noon–6 PM
Cloudy, 71°21°40% chance · 0.25 in6.4 mm
Evening
6 PM–midnight
Drizzle, 65°19°40% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 69°21°–78°26°
- Low, likely
- 57°14°–65°18°
- Typical high / low
- 78°26° / 53°12°
- Wind
- 10 mph16 km/h, gusts 27 mph44 km/h
- UV peak
- 2
The outlook
Today
Dry, high 70°, low 57°.
Tomorrow
Dry, high 74°, low 58°, warming up.
Sunday
Dry, high 79°, low 59°, warming up.
Rest of week
Highs 69–80°; chance of precipitation on Sunday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (SGX) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
Heating degree days, base 65°F
Comfort
Comfortable, non-humid air (dew point 57°F).
Open the windows?
Today, 2:00 PM–10:00 PM
Good stretch to open the windows.
Is this typical?
Oct 23, today vs a typical year
Today’s expected high is 10°6° colder than typical.
- Normal high / low
- 80°27° / 56°13°
- Forecast high / low
- 70°21° / 57°14°
- Record high
- 103°39° in 1909
- Record low
- 26°−3° in 1906
Last 7 days vs normal
- —SatOct 17
- —SunOct 18
- —MonOct 19
- —TueOct 20
- —WedOct 21
- —ThuOct 22
- —FriOct 23
San Marcos weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 6:59 AM, sunset 6:05 PM.
- Daylight
- 11 h 6 min
- Losing 1 min 53 s a day; shortest Dec 21, 1 h 9 min less
- Golden hour
- 5:32–6:21 PM
- Morning 6:44–7:33 AM
- Blue hour
- 6:21–6:31 PM
- Morning 6:34–6:44 AM; first light 6:34 AM
Stars tonight? Poor
Clouds most of the night (about 65% cover).
Moon
Waxing gibbous
91% lit · growing
- Today
- sets 4:19 AM · rises 4:33 PM
- Full moon
- Oct 25
- New moon
- Nov 8