South San Francisco, CA Hourly Weather

San Mateo County7:31 AM PDT37.65°N, 122.41°WElevation 13 ft
Coastal Flood Advisory until 3:00 PM Thu

Next 48 hours

7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Tue Oct 27 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Wed Oct 28 1 AM 4 AM 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Monday, October 2617 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
7 AM Mostly Sunny 55° 55° 0% 0.00 in WNW 5 91% 52° 29% 0
8 AM Sunny 55° 55° 0% 0.00 in WNW 5 G10 91% 52° 16% 0
9 AM Mostly Sunny 58° 59° 0% 0.00 in WNW 6 87% 55° 35% 1
10 AM Mostly Sunny 60° 61° 0% 0.00 in WNW 7 83% 55° 33% 2
11 AM Mostly Sunny 62° 63° 0% 0.00 in WNW 8 G14 78% 56° 32% 3
12 PM Sunny 63° 63° 0% 0.00 in WNW 10 G16 78% 56° 25% 4
1 PM Mostly Sunny 64° 64° 0% 0.00 in WNW 12 G18 76% 56° 40% 4
2 PM Mostly Sunny 64° 64° 0% 0.00 in W 14 G21 74% 56° 28% 4
3 PM Sunny 64° 64° 0% 0.00 in W 16 G22 75% 56° 15% 3
4 PM Sunny 63° 63° 0% 0.00 in WNW 17 G24 73% 55° 3% 1
5 PM Sunny 62° 62° 0% 0.00 in WNW 17 G25 71% 53° 2% 0
6 PM Clear 60° 60° 0% 0.00 in WNW 17 G25 76% 53° 4% 0
7 PM Mostly Clear 58° 58° 0% 0.00 in WNW 16 G25 79% 51° 9% 0
8 PM Mostly Clear 57° 57° 0% 0.00 in WNW 16 G25 78% 51° 13% 0
9 PM Mostly Clear 57° 57° 0% 0.00 in WNW 15 G25 78% 50° 15% 0
10 PM Mostly Clear 57° 57° 0% 0.00 in WNW 15 G24 79% 50° 23% 0
11 PM Partly Cloudy 56° 56° 0% 0.00 in WNW 13 G24 78% 49° 33% 0
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 55° 55° 0% 0.00 in WNW 13 G24 81% 50° 33% 0
1 AM Partly Cloudy 55° 55° 0% 0.00 in WNW 13 G24 79% 48° 33% 0
2 AM Partly Cloudy 54° 54° 0% 0.00 in WNW 8 G20 81% 49° 33% 0
3 AM Partly Cloudy 53° 53° 0% 0.00 in WNW 8 G20 82% 48° 33% 0
4 AM Partly Cloudy 53° 53° 0% 0.00 in WNW 8 G20 84% 48° 33% 0
5 AM Mostly Cloudy 53° 53° 0% 0.00 in NW 6 G14 85% 48° 69% 0
6 AM Partly Sunny 52° 52° 0% 0.00 in NW 6 G14 89% 49° 69% 0
7 AM Partly Sunny 52° 52° 0% 0.00 in NW 6 G14 91% 50° 69% 0
8 AM Mostly Sunny 53° 53° 0% 0.00 in NW 5 90% 50° 26% 0
9 AM Mostly Sunny 54° 55° 0% 0.00 in NW 5 88% 51° 26% 1
10 AM Mostly Sunny 57° 57° 0% 0.00 in NW 5 83% 52° 26% 2
11 AM Sunny 59° 59° 0% 0.00 in WNW 6 78% 52° 24% 3
12 PM Sunny 60° 60° 0% 0.00 in WNW 6 73% 52° 24% 4
1 PM Sunny 61° 61° 0% 0.00 in WNW 6 69% 51° 24% 4
2 PM Mostly Sunny 62° 62° 0% 0.00 in WNW 12 67% 51° 32% 3
3 PM Mostly Sunny 62° 62° 0% 0.00 in WNW 12 66% 50° 32% 2
4 PM Mostly Sunny 62° 62° 0% 0.00 in WNW 12 66% 50° 32% 1
5 PM Mostly Sunny 61° 61° 0% 0.00 in WNW 17 G26 68% 50° 32% 0
6 PM Partly Cloudy 60° 60° 0% 0.00 in WNW 17 G26 70% 50° 32% 0
7 PM Partly Cloudy 58° 58° 0% 0.00 in WNW 17 G26 74% 50° 32% 0
8 PM Partly Cloudy 57° 57° 0% 0.00 in WNW 16 G25 77% 50° 27% 0
9 PM Partly Cloudy 56° 56° 0% 0.00 in WNW 16 G25 78% 49° 27% 0
10 PM Partly Cloudy 56° 55° 0% 0.00 in WNW 16 G25 79% 49° 27% 0
11 PM Mostly Clear 55° 55° 0% 0.00 in WNW 9 G17 79% 49° 25% 0
Wednesday, October 2824 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 55° 55° 0% 0.00 in WNW 9 G17 81% 49° 25% 0
1 AM Mostly Clear 54° 54° 0% 0.00 in WNW 9 G17 83% 49° 25% 0
2 AM Mostly Clear 54° 54° 0% 0.00 in WNW 5 85% 49° 24% 0
3 AM Mostly Clear 53° 53° 0% 0.00 in WNW 5 87% 49° 24% 0
4 AM Mostly Clear 52° 52° 0% 0.00 in WNW 5 88% 49° 24% 0
5 AM Partly Cloudy 52° 52° 0% 0.00 in NNW 2 90% 49° 32% 0
6 AM Mostly Sunny 51° 51° 0% 0.00 in NNW 2 92% 49° 32% 0
7 AM Mostly Sunny 51° 51° 0% 0.00 in NNW 2 95% 50° 32% 0
8 AM Mostly Sunny 52° 52° 0% 0.00 in NNE 2 95% 50° 46% 0
9 AM Mostly Sunny 54° 54° 0% 0.00 in NNE 2 91% 51° 46% 1
10 AM Mostly Sunny 56° 57° 0% 0.00 in NNE 2 86% 52° 46% 2
11 AM Mostly Sunny 59° 59° 0% 0.00 in N 3 80% 53° 44% 3
12 PM Mostly Sunny 61° 61° 0% 0.00 in N 3 73% 52° 44% –
1 PM Mostly Sunny 62° 62° 0% 0.00 in N 3 67% 51° 44% –
2 PM Mostly Sunny 63° 63° 0% 0.00 in NW 5 63% 50° 47% –
3 PM Mostly Sunny 63° 63° 0% 0.00 in NW 5 63% 50° 47% –
4 PM Mostly Sunny 62° 63° 0% 0.00 in NW 5 65% 50° 47% –
5 PM Partly Sunny 62° 62° 0% 0.00 in WNW 12 G17 68% 51° 53% –
6 PM Mostly Cloudy 60° 60° 0% 0.00 in WNW 12 G17 71% 51° 53% –
7 PM Mostly Cloudy 59° 59° 0% 0.00 in WNW 12 G17 74% 50° 53% –
8 PM Mostly Cloudy 58° 58° 0% 0.00 in WNW 10 G17 76% 50° 53% –
9 PM Mostly Cloudy 57° 57° 0% 0.00 in WNW 10 G17 77% 50° 53% –
10 PM Mostly Cloudy 57° 57° 0% 0.00 in WNW 10 G17 77% 50° 53% –
11 PM Mostly Cloudy 56° 57° 0% 0.00 in WNW 8 G14 78% 50° 70% –
Thursday, October 2924 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 56° 56° 0% 0.00 in WNW 8 G14 79% 50° 70% –
1 AM Mostly Cloudy 56° 56° 0% 0.00 in WNW 8 G14 81% 50° 70% –
2 AM Mostly Cloudy 56° 56° 0% 0.00 in WNW 7 82% 50° 70% –
3 AM Mostly Cloudy 55° 55° 0% 0.00 in WNW 7 82% 50° 70% –
4 AM Mostly Cloudy 55° 55° 0% 0.00 in WNW 7 81% 49° 70% –
5 AM Mostly Cloudy 54° 54° 0% 0.00 in WNW 6 G12 81% 49° 70% –
6 AM Mostly Cloudy 54° 54° 0% 0.00 in WNW 6 G12 83% 49° 70% –
7 AM Mostly Cloudy 54° 54° 0% 0.00 in WNW 6 G12 85% 50° 70% –
8 AM Mostly Cloudy 54° 54° 0% 0.00 in WNW 6 86% 50° 70% –
9 AM Mostly Cloudy 56° 56° 0% 0.00 in WNW 6 84% 50° 70% –
10 AM Mostly Cloudy 58° 58° 0% 0.00 in WNW 6 81% 51° 70% –
11 AM Partly Sunny 59° 59° 1% 0.00 in WNW 9 77% 51° 58% –
12 PM Partly Sunny 60° 60° 1% 0.00 in WNW 9 74% 50° 58% –
1 PM Partly Sunny 60° 60° 1% 0.00 in WNW 9 71% 50° 58% –
2 PM Partly Sunny 60° 60° 1% 0.00 in W 13 G20 69% 49° 58% –
3 PM Partly Sunny 60° 59° 1% 0.00 in W 13 G20 68% 49° 58% –
4 PM Partly Sunny 59° 59° 1% 0.00 in W 13 G20 67% 48° 58% –
5 PM Mostly Sunny 59° 59° 1% 0.00 in WNW 18 G28 68% 47° 40% –
6 PM Partly Cloudy 58° 58° 1% 0.00 in WNW 18 G28 69% 47° 40% –
7 PM Partly Cloudy 56° 56° 1% 0.00 in WNW 18 G28 70% 47° 40% –
8 PM Partly Cloudy 55° 55° 1% 0.00 in WNW 22 G30 71% 47° 40% –
9 PM Partly Cloudy 55° 55° 1% 0.00 in WNW 22 G30 72% 46° 40% –
10 PM Partly Cloudy 55° 55° 1% 0.00 in WNW 22 G30 72% 46° 40% –
11 PM Partly Cloudy 55° 55° 3% 0.00 in WNW 20 G30 72% 46° 33% –
Friday, October 3024 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 55° 55° 3% 0.00 in WNW 20 G30 72% 46° 33% –
1 AM Partly Cloudy 55° 55° 3% 0.00 in WNW 20 G30 72% 46° 33% –
2 AM Partly Cloudy 55° 55° 3% 0.00 in WNW 14 G24 73% 46° 33% –
3 AM Partly Cloudy 54° 54° 3% 0.00 in WNW 14 G24 73% 46° 33% –
4 AM Partly Cloudy 54° 54° 3% 0.00 in WNW 14 G24 74% 46° 33% –
5 AM Mostly Clear 54° 54° 12% 0.00 in WNW 10 G23 76% 46° 25% –
6 AM Sunny 53° 53° 12% 0.00 in WNW 10 G23 78% 47° 25% –
7 AM Sunny 53° 53° 12% 0.00 in WNW 10 G23 80% 47° 25% –
8 AM Sunny 54° 54° 12% 0.00 in WNW 8 G16 81% 48° 25% –
9 AM Sunny 55° 55° 12% 0.00 in WNW 8 G16 80% 48° 25% –
10 AM Sunny 57° 57° 12% 0.00 in WNW 8 G16 78% 49° 25% –
11 AM Mostly Sunny 58° 58° 12% 0.00 in WNW 12 75% 49° 36% –
12 PM Mostly Sunny 58° 59° 12% 0.00 in WNW 12 72% 48° 36% –
1 PM Mostly Sunny 58° 58° 12% 0.00 in WNW 12 70% 48° 36% –
2 PM Mostly Sunny 58° 58° 12% 0.00 in W 14 G21 68% 47° 36% –
3 PM Mostly Sunny 58° 58° 12% 0.00 in W 14 G21 66% 47° 36% –
4 PM Mostly Sunny 58° 58° 12% 0.00 in W 14 G21 66% 46° 36% –
5 PM Slight Chance Light Rain 57° 57° 18% 0.00 in W 17 G24 66% 45° 33% –
6 PM Slight Chance Light Rain 56° 56° 18% 0.00 in W 17 G24 67% 45° 33% –
7 PM Slight Chance Light Rain 54° 54° 18% 0.00 in W 17 G24 69% 45° 33% –
8 PM Slight Chance Light Rain 53° 53° 18% 0.00 in WNW 14 G22 70% 44° 33% –
9 PM Slight Chance Light Rain 53° 53° 18% 0.00 in WNW 14 G22 70% 44° 33% –
10 PM Slight Chance Light Rain 53° 53° 18% 0.00 in WNW 14 G22 70% 44° 33% –
11 PM Chance Light Rain 54° 54° 27% 0.00 in WNW 13 G21 70% 44° 51% –
Saturday, October 3124 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Chance Light Rain 53° 53° 27% 0.00 in WNW 13 G21 72% 44° 51% –
1 AM Chance Light Rain 53° 53° 27% 0.00 in WNW 13 G21 74% 45° 51% –
2 AM Chance Light Rain 53° 53° 27% 0.00 in WNW 8 G14 76% 45° 51% –
3 AM Chance Light Rain 52° 52° 27% 0.00 in WNW 8 G14 76% 45° 51% –
4 AM Chance Light Rain 52° 52° 27% 0.00 in WNW 8 G14 76% 45° 51% –
5 AM Chance Light Rain 52° 52° 39% 0.01 in WNW 5 G10 76% 45° 59% –
6 AM Chance Light Rain 52° 51° 39% 0.01 in WNW 5 G10 80% 45° 59% –
7 AM Chance Light Rain 51° 51° 39% 0.01 in WNW 5 G10 83% 46° 59% –
8 AM Chance Light Rain 52° 52° 39% 0.01 in NNW 5 86% 47° 59% –
9 AM Chance Light Rain 53° 53° 39% 0.01 in NNW 5 85% 48° 59% –
10 AM Chance Light Rain 55° 55° 39% 0.01 in NNW 5 83% 49° 59% –
11 AM Chance Light Rain 57° 57° 29% 0.00 in NNW 6 80% 49° 53% –
12 PM Chance Light Rain 58° 58° 29% 0.00 in NNW 6 75% 48° 53% –
1 PM Chance Light Rain 58° 58° 29% 0.00 in NNW 6 71% 47° 53% –
2 PM Chance Light Rain 57° 57° 29% 0.00 in W 6 67% 46° 53% –
3 PM Chance Light Rain 57° 57° 29% 0.00 in W 6 65% 46° 53% –
4 PM Chance Light Rain 57° 57° 29% 0.00 in W 6 64% 45° 53% –
5 PM Mostly Sunny 57° 57° 12% 0.00 in W 9 64% 45° 44% –
6 PM Partly Cloudy 56° 56° 12% 0.00 in W 9 66% 44° 44% –
7 PM Partly Cloudy 54° 54° 12% 0.00 in W 9 68% 44° 44% –
8 PM Partly Cloudy 53° 53° 12% 0.00 in WNW 7 70% 44° 44% –
9 PM Partly Cloudy 53° 53° 12% 0.00 in WNW 7 70% 44° 44% –
10 PM Partly Cloudy 53° 53° 12% 0.00 in WNW 7 71% 44° 44% –
11 PM Slight Chance Light Rain 53° 53° 23% 0.00 in NW 6 71% 44° 45% –
Sunday, November 110 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Slight Chance Light Rain 53° 53° 23% 0.00 in NW 6 73% 45° 45% –
1 AM Slight Chance Light Rain 52° 53° 23% 0.00 in NW 6 75% 45° 45% –
1 AM Slight Chance Light Rain 52° 52° 23% 0.00 in NNE 5 76% 45° 45% –
2 AM Slight Chance Light Rain 52° 52° 23% 0.00 in NNE 5 78% 45° 45% –
3 AM Slight Chance Light Rain 51° 51° 23% 0.00 in NNE 5 79% 45° 45% –
4 AM Slight Chance Light Rain 51° 51° 23% 0.00 in NE 5 80% 45° 45% –
5 AM Slight Chance Light Rain 51° 51° 23% 0.00 in NE 5 83% 46° 45% –
6 AM Slight Chance Light Rain 52° 52° 23% 0.00 in NE 5 86% 48° 45% –
7 AM Slight Chance Light Rain 53° 53° 23% 0.00 in NNE 6 86% 49° 45% –
8 AM Slight Chance Light Rain 54° 54° 23% 0.00 in NNE 6 84% 50° 45% –

National Weather Service forecast updated 18 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use. How to use Weather