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Today weather in San Mateo County

Monday, March 16th, 2026
today weather
31°
Sunny
Weather Alert Official weather alert: Heat Advisory.
Today, San Mateo County is set to face a notably hot day, with temperatures spiking up to 31 °F and offering slight relief at 11 °F by night. Gentle breezes are expected across San Mateo County Today, with speeds reaching around 10 km/h.
Tuesday, Mar. 17
31° / 12°
Temp
0%
Rain
10 km/h
Wind
44%
Humidity
San Mateo County Weather Pages
Today WeatherTomorrow Weather14 Days ForecastApril Weather

San Mateo County hourly forecast for today

Scroll right to see more weather forecasts for San Mateo County today
12:00 AM01:00 AM02:00 AM03:00 AM04:00 AM05:00 AM06:00 AM07:00 AM07:19 AM08:00 AM09:00 AM10:00 AM11:00 AM12:00 PM01:00 PM02:00 PM03:00 PM04:00 PM05:00 PM06:00 PM07:00 PM07:18 PM08:00 PM09:00 PM10:00 PM11:00 PM
weatherSunnySunnySunnySunnySunnySunnySunnySunnysunriseSunnySunnySunnySunnySunnySunnySunnySunnySunnySunnySunnySunnysunsetSunnySunnySunnySunnyNext
temperatures17.3°17.3°15.8°14.6°14°12.8°12.4°12.3°Sunrise14.1°16.9°18.1°24.2°26.7°28.4°29.8°30.6°30.5°29.4°27.8°24.6°Sunset22.2°19.3°17.4°16°
feels like17.3°17.3°15.8°14.6°14°12.8°12.4°12.3°14.1°16.9°21.1°24.1°26.1°27.4°28.5°29.1°29.1°28.1°26.9°25°22.5°19.3°17.4°16.4°
wind speed1 km/h4 km/h4 km/h3 km/h2 km/h3 km/h4 km/h5 km/h5 km/h5 km/h5 km/h5 km/h6 km/h7 km/h7 km/h8 km/h9 km/h10 km/h11 km/h9 km/h6 km/h5 km/h5 km/h3 km/h
wind degree65°107°98°103°73°48°71°92°68°68°64°34°18°11°358°347°338°322°308°308°316°312°307°306°
wind directionENEESEEESEENENEENEEENEENEENENENNENNENNNWNNWNWNWNWNWNWNWNW
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
chance for rain0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
chance for snow0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
humidity35%24%26%47%63%60%73%67%66%62%73%40%37%29%28%25%25%27%31%32%31%32%74%77%
dew point0.6°-3.6°-2.4°3.1°6.3°5.9°7°6.1°6.1°8.6°9.8°10.7°11.5°9.4°9.8°8.9°8.8°9.3°9.3°8.2°3.3°2.8°11.7°11.5°
visibility10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km48 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km
cloud cover0%0%0%0%0%0%13%1%2%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
UV000000000.20.92.23.75.26.15.84.62.81.30.400000

View of San Mateo County today

Explore San Mateo County live webcam feed to see how the weather is shaping up today in San Mateo County. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.

Stay informed and make the most of your day with our live weather updates from San Mateo County today.

San Mateo County today

Weather in San Mateo County today

The weather in San Mateo County today is expected to be significantly warmer than usual, with a forecast temperature of 31 °F, compared to an average of 13 °F for March 16th in recent years.

temperatures
temperatures
31 °F
rain
rain
0 mm
wind
wind
10 km/h
1.4
UV
Low
San Mateo County daylight overview ☀️
Today in San Mateo County, The sun rises at 07:19 and sets at 19:18, giving a total daylight duration of 11 hours and 59 minutes.
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What to wear today in San Mateo County? clothing recommendations

Stay comfortably stylish - your tailored guide for today's San Mateo County forecast.
  • Short-sleeve shirtShort-sleeve shirt
  • ShortsShorts
  • Lightweight pantsLightweight pants
  • Breathable footwearBreathable footwear
  • SunglassesSunglasses
  • Wide brimmed hatWide brimmed hat
  • SunscreenSunscreen
  • Flip flopFlip flop

The weather today in San Mateo County - FAQ

What is the maximum temperature for today in San Mateo County?

The maximum temperature for today in San Mateo County is expected to be 31° degrees. Please dress accordingly to stay comfortable throughout the day.

Will it rain today in San Mateo County? 🌧️

No, there is no significant chance of rain in San Mateo County today. It should be a dry day.

What will be the wind speed today in San Mateo County? 🌀

The wind in San Mateo County is expected to blow at 10 km/h. This could affect outdoor activities, so plan accordingly.

How should I dress for the weather in San Mateo County today?

Given the forecast of 31 °F with a 0% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in San Mateo County today.

What is the sunrise and sunset time for San Mateo County today?

The sun is expected to rise at 07:19 and set at 19:18 in San Mateo County.

How accurate is the weather forecast San Mateo County today? ✅

San Mateo County weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Location coordinates Where is San Mateo County?

Get accurate weather forecasts for San Mateo County, located at latitude 37.563 and longitude -122.326. Stay updated with localized weather information tailored for San Mateo County.

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