San Mateo County (San Mateo)
Today
Today weather in San Mateo County
Sunday, August 17th, 2025
17°
Overcast
Mild temperatures are expected in San Mateo County Today, peaking at around 17 °F and dropping to 13 °F by night. It'll be quite breezy in San Mateo County Today with average wind speeds of 20 km/h. Expect a humid atmosphere, with levels hovering around 89%.
17° / 14°
Temp
0%
Rain
20 km/h
Wind
89%
Humidity
San Mateo County Weather Pages
San Mateo County hourly forecast for today
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| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 06:27 AM | 07:00 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 07:59 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  | | | | | | | | | | | | | |  | | | |  | Next |
| temperatures | 15.3° | 15.4° | 15.5° | 15.5° | 15.4° | 15.3° | 15.1° | Sunrise | 15° | 14.9° | 15° | 15.3° | 15.5° | 15.9° | 16.4° | 16.7° | 16.8° | 16.7° | 16.7° | 16° | 15.5° | Sunset | 15° | 14.5° | 14.1° | 13.8° | |
| wind speed | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 10 km/h | 12 km/h | 14 km/h | 16 km/h | 18 km/h | 20 km/h | 21 km/h | 19 km/h | 17 km/h | 15 km/h | 13 km/h | 10 km/h | 10 km/h | 10 km/h | |||
| wind degree | 239° | 238° | 239° | 238° | 239° | 246° | 243° | 246° | 251° | 255° | 266° | 273° | 275° | 275° | 275° | 276° | 279° | 281° | 280° | 278° | 269° | 263° | 256° | 251° | |||
| wind direction | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W | WNW | W | W | W | W | WSW | WSW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 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 snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 96% | 95% | 94% | 94% | 93% | 92% | 92% | 93% | 93% | 92% | 90% | 88% | 87% | 84% | 81% | 79% | 80% | 81% | 83% | 86% | 88% | 90% | 92% | 86% | |||
| dew point | 14.2° | 14.4° | 14.6° | 14.6° | 14.4° | 14.1° | 13.9° | 13.9° | 13.6° | 13.6° | 13.5° | 13.6° | 13.6° | 13.7° | 13.5° | 13.4° | 13.4° | 13.3° | 13.8° | 13° | 12.9° | 12.8° | 12.9° | 11.3° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 0% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.6 | 1.6 | 3.4 | 5.9 | 8.2 | 9.2 | 8.7 | 7.1 | 4.8 | 2.6 | 1 | 0.2 | 0 | 0 | 0 | 0 |
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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.
Weather in San Mateo County today
The weather in San Mateo County today is expected to be noticeably cooler than usual, with a forecast temperature of 17 °F, compared to an average of 20 °F for August 17th in recent years.
temperatures
17 °F
rain
0 mm
wind
20 km/h
UV
Low
San Mateo County daylight overview ☀️
Today in San Mateo County, The sun rises at 06:27 and sets at 19:59, giving a total daylight duration of 13 hours and 32 minutes.
Top locations in San Mateo County
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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.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
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 17° 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 20 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 17 °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 06:27 and set at 19:59 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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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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