Altadena, CA Hourly Weather

Los Angeles County11:51 AM PDT34.19°N, 118.13°WElevation 1,358 ft
Flash Flood Warning until 2:00 PM ThuFlood Advisory until 2:00 PM ThuFlood Advisory until 1:00 PM ThuSpecial Weather Statement until 12:15 PM Thu1 more alerts ›

Next 48 hours

11 AM 2 PM 5 PM 8 PM 11 PM Fri Oct 23 2 AM 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Sat Oct 24 2 AM 5 AM 8 AM 50° 55° 60° 65° 70° %
TemperatureFeels likeChance of precipitationNight
Thursday, October 2213 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
11 AM Showers And Thunderstorms 66° 66° 87% 0.03 in SW 5 100% 66° 93% 4
12 PM Showers And Thunderstorms 63° 63° 87% 0.03 in SW 5 87% 59° 93% 5
1 PM Showers And Thunderstorms 58° 58° 87% 0.03 in SW 5 82% 53° 93% 5
2 PM Showers And Thunderstorms 58° 58° 87% 0.03 in SW 10 71% 49° 93% 4
3 PM Showers And Thunderstorms 60° 60° 87% 0.03 in SW 10 69% 50° 93% 3
4 PM Showers And Thunderstorms 60° 60° 87% 0.03 in SW 10 66% 49° 93% 1
5 PM Slight Chance Rain Showers 63° 63° 16% <0.01 in SSW 5 81% 57° 63% 0
6 PM Slight Chance Rain Showers 58° 58° 16% <0.01 in SSW 5 76% 50° 63% 0
7 PM Slight Chance Rain Showers 58° 58° 16% <0.01 in SSW 5 81% 52° 63% 0
8 PM Slight Chance Rain Showers 55° 55° 16% <0.01 in ESE 5 83% 50° 63% 0
9 PM Slight Chance Rain Showers 55° 55° 16% <0.01 in ESE 5 96% 54° 63% 0
10 PM Slight Chance Rain Showers 52° 52° 16% <0.01 in ESE 5 98% 51° 63% 0
11 PM Mostly Cloudy 55° 55° 9% 0.00 in ESE 5 98% 54° 80% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 52° 52° 9% 0.00 in ESE 5 98% 51° 80% 0
1 AM Mostly Cloudy 52° 52° 9% 0.00 in ESE 5 98% 51° 80% 0
2 AM Mostly Cloudy 52° 52° 9% 0.00 in E 5 98% 51° 80% 0
3 AM Mostly Cloudy 52° 52° 9% 0.00 in E 5 98% 51° 80% 0
4 AM Mostly Cloudy 52° 52° 9% 0.00 in E 5 98% 51° 80% 0
5 AM Mostly Cloudy 57° 57° 10% 0.00 in E 5 98% 56° 70% 0
6 AM Mostly Cloudy 55° 55° 10% 0.00 in E 5 98% 54° 70% 0
7 AM Mostly Cloudy 55° 55° 10% 0.00 in E 5 98% 54° 70% 0
8 AM Mostly Cloudy 57° 57° 10% 0.00 in S 5 98% 56° 70% 0
9 AM Mostly Cloudy 57° 57° 10% 0.00 in S 5 98% 56° 70% 1
10 AM Mostly Cloudy 57° 57° 10% 0.00 in S 5 98% 56° 70% 3
11 AM Slight Chance Rain Showers 60° 60° 20% <0.01 in SW 5 84% 55° 57% 5
12 PM Slight Chance Rain Showers 62° 62° 20% <0.01 in SW 5 65% 50° 57% 6
1 PM Slight Chance Rain Showers 65° 65° 20% <0.01 in SW 5 63% 52° 57% 5
2 PM Slight Chance Rain Showers 65° 65° 20% <0.01 in SW 5 56% 49° 57% 4
3 PM Slight Chance Rain Showers 70° 70° 20% <0.01 in SW 5 56% 54° 57% 3
4 PM Slight Chance Rain Showers 65° 65° 20% <0.01 in SW 5 58% 50° 57% 1
5 PM Sunny 67° 67° 7% 0.00 in WNW 5 71% 57° 16% 0
6 PM Mostly Clear 67° 67° 7% 0.00 in WNW 5 74% 58° 16% 0
7 PM Mostly Clear 62° 62° 7% 0.00 in WNW 5 76% 54° 16% 0
8 PM Mostly Clear 62° 62° 7% 0.00 in NE 5 76% 54° 16% 0
9 PM Mostly Clear 59° 59° 7% 0.00 in NE 5 76% 51° 16% 0
10 PM Mostly Clear 59° 59° 7% 0.00 in NE 5 82% 54° 16% 0
11 PM Mostly Clear 59° 59° 0% 0.00 in NE 5 84% 54° 12% 0
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 59° 59° 0% 0.00 in NE 5 91% 56° 12% 0
1 AM Mostly Clear 57° 57° 0% 0.00 in NE 5 89% 54° 12% 0
2 AM Mostly Clear 57° 57° 0% 0.00 in NE 5 89% 54° 12% 0
3 AM Mostly Clear 57° 57° 0% 0.00 in NE 5 89% 54° 12% 0
4 AM Mostly Clear 57° 57° 0% 0.00 in NE 5 89% 54° 12% 0
5 AM Mostly Clear 54° 54° 0% 0.00 in ESE 5 89% 51° 14% 0
6 AM Sunny 54° 54° 0% 0.00 in ESE 5 90% 51° 14% 0
7 AM Sunny 54° 54° 0% 0.00 in ESE 5 90% 51° 14% 0
8 AM Sunny 57° 57° 0% 0.00 in SE 5 87% 53° 14% 0
9 AM Sunny 60° 60° 0% 0.00 in SE 5 81% 54° 14% 1
10 AM Sunny 63° 63° 0% 0.00 in SE 5 73% 54° 14% 3
11 AM Sunny 65° 65° 0% 0.00 in SSW 5 66% 53° 2% 5
12 PM Sunny 68° 68° 0% 0.00 in SSW 5 61% 54° 2% 6
1 PM Sunny 71° 71° 0% 0.00 in SSW 5 57% 55° 2% 6
2 PM Sunny 73° 73° 0% 0.00 in SW 5 56% 56° 2% 5
3 PM Sunny 74° 74° 0% 0.00 in SW 5 56% 57° 2% 3
4 PM Sunny 74° 74° 0% 0.00 in SW 5 58% 58° 2% 1
5 PM Sunny 70° 70° 0% 0.00 in NNE 5 61% 56° 1% 0
6 PM Clear 67° 67° 0% 0.00 in NNE 5 63% 54° 1% 0
7 PM Clear 64° 64° 0% 0.00 in NNE 5 65% 52° 1% 0
8 PM Clear 62° 62° 0% 0.00 in NNE 5 66% 51° 1% 0
9 PM Clear 61° 61° 0% 0.00 in NNE 5 67% 50° 1% 0
10 PM Clear 59° 59° 0% 0.00 in NNE 5 68% 48° 1% 0
11 PM Mostly Clear 59° 59° 0% 0.00 in NNE 5 68% 48° 10% 0
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 59° 59° 0% 0.00 in NNE 5 67% 48° 10% –
1 AM Mostly Clear 59° 59° 0% 0.00 in NNE 5 67% 48° 10% –
2 AM Mostly Clear 59° 59° 0% 0.00 in NNE 5 66% 48° 10% –
3 AM Mostly Clear 58° 58° 0% 0.00 in NNE 5 66% 47° 10% –
4 AM Mostly Clear 58° 58° 0% 0.00 in NNE 5 66% 47° 10% –
5 AM Mostly Clear 58° 58° 0% 0.00 in NNE 5 68% 48° 14% –
6 AM Sunny 57° 57° 0% 0.00 in NNE 5 70% 47° 14% –
7 AM Sunny 57° 57° 0% 0.00 in NNE 5 71% 48° 14% –
8 AM Sunny 59° 59° 0% 0.00 in NE 5 70% 49° 14% –
9 AM Sunny 62° 62° 0% 0.00 in NE 5 65% 50° 14% –
10 AM Sunny 66° 66° 0% 0.00 in NE 5 58% 51° 14% –
11 AM Sunny 70° 70° 0% 0.00 in Calm 52% 52° 6% –
12 PM Sunny 73° 73° 0% 0.00 in Calm 47% 52° 6% –
1 PM Sunny 75° 75° 0% 0.00 in Calm 44% 52° 6% –
2 PM Sunny 76° 76° 0% 0.00 in SW 5 43% 52° 6% –
3 PM Sunny 77° 77° 0% 0.00 in SW 5 43% 53° 6% –
4 PM Sunny 77° 77° 0% 0.00 in SW 5 45% 54° 6% –
5 PM Sunny 75° 75° 0% 0.00 in Calm 46% 53° 11% –
6 PM Mostly Clear 71° 71° 0% 0.00 in Calm 52% 53° 11% –
7 PM Mostly Clear 68° 68° 0% 0.00 in Calm 57% 52° 11% –
8 PM Mostly Clear 65° 65° 0% 0.00 in NW 5 G10 60% 51° 11% –
9 PM Mostly Clear 64° 64° 0% 0.00 in NW 5 G10 62% 51° 11% –
10 PM Mostly Clear 63° 63° 0% 0.00 in NW 5 G10 61% 49° 11% –
11 PM Mostly Clear 63° 63° 0% 0.00 in NNE 5 60% 49° 14% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 62° 62° 0% 0.00 in NNE 5 61% 48° 14% –
1 AM Mostly Clear 62° 62° 0% 0.00 in NNE 5 62% 49° 14% –
2 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 62% 48° 14% –
3 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 62% 48° 14% –
4 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 61% 47° 14% –
5 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 60% 47° 8% –
6 AM Sunny 61° 61° 0% 0.00 in NNE 5 61% 47° 8% –
7 AM Sunny 61° 61° 0% 0.00 in NNE 5 62% 48° 8% –
8 AM Sunny 62° 62° 0% 0.00 in NNE 5 60% 48° 8% –
9 AM Sunny 66° 66° 0% 0.00 in NNE 5 54% 49° 8% –
10 AM Sunny 70° 70° 0% 0.00 in NNE 5 47% 49° 8% –
11 AM Sunny 74° 74° 0% 0.00 in Calm 41% 49° 7% –
12 PM Sunny 77° 77° 0% 0.00 in Calm 38% 49° 7% –
1 PM Sunny 78° 78° 0% 0.00 in Calm 35% 48° 7% –
2 PM Sunny 79° 79° 0% 0.00 in Calm 35% 49° 7% –
3 PM Sunny 79° 79° 0% 0.00 in Calm 37% 51° 7% –
4 PM Sunny 78° 78° 0% 0.00 in Calm 40% 52° 7% –
5 PM Sunny 76° 76° 0% 0.00 in Calm 45% 53° 3% –
6 PM Clear 73° 73° 0% 0.00 in Calm 49% 53° 3% –
7 PM Clear 69° 69° 0% 0.00 in Calm 53% 51° 3% –
8 PM Clear 66° 66° 0% 0.00 in NW 5 56% 50° 3% –
9 PM Clear 64° 64° 0% 0.00 in NW 5 58% 49° 3% –
10 PM Clear 64° 64° 0% 0.00 in NW 5 58% 49° 3% –
11 PM Mostly Clear 63° 63° 0% 0.00 in NNE 5 58% 48° 16% –
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 62° 62° 0% 0.00 in NNE 5 58% 47° 16% –
1 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 58% 46° 16% –
2 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 58% 46° 16% –
3 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 57% 46° 16% –
4 AM Mostly Clear 61° 61° 0% 0.00 in NNE 5 56% 45° 16% –
5 AM Partly Cloudy 61° 61° 0% 0.00 in NNE 5 56% 45° 26% –
6 AM Mostly Sunny 60° 60° 0% 0.00 in NNE 5 57% 45° 26% –
7 AM Mostly Sunny 60° 60° 0% 0.00 in NNE 5 59% 46° 26% –
8 AM Mostly Sunny 61° 61° 0% 0.00 in NNE 5 58% 46° 26% –
9 AM Mostly Sunny 64° 64° 0% 0.00 in NNE 5 52% 46° 26% –
10 AM Mostly Sunny 69° 69° 0% 0.00 in NNE 5 45% 47° 26% –
11 AM Mostly Sunny 73° 73° 0% 0.00 in Calm 40% 47° 27% –
12 PM Mostly Sunny 76° 76° 0% 0.00 in Calm 37% 48° 27% –
1 PM Mostly Sunny 77° 77° 0% 0.00 in Calm 36% 48° 27% –
2 PM Mostly Sunny 78° 78° 0% 0.00 in Calm 36% 49° 27% –
3 PM Mostly Sunny 78° 78° 0% 0.00 in Calm 38% 50° 27% –
4 PM Mostly Sunny 77° 77° 0% 0.00 in Calm 41% 52° 27% –
5 PM Sunny 75° 75° 0% 0.00 in Calm 45% 52° 22% –
6 PM Mostly Clear 72° 72° 0% 0.00 in Calm 49% 52° 22% –
7 PM Mostly Clear 69° 69° 0% 0.00 in Calm 53% 51° 22% –
8 PM Mostly Clear 66° 66° 0% 0.00 in Calm 56% 50° 22% –
9 PM Mostly Clear 64° 64° 0% 0.00 in Calm 59% 49° 22% –
10 PM Mostly Clear 64° 64° 0% 0.00 in Calm 60% 50° 22% –
11 PM Partly Cloudy 63° 63° 0% 0.00 in NE 5 60% 49° 33% –
Wednesday, October 2823 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 62° 62° 0% 0.00 in NE 5 61% 48° 33% –
1 AM Partly Cloudy 61° 61° 0% 0.00 in NE 5 61% 47° 33% –
2 AM Partly Cloudy 61° 61° 0% 0.00 in NE 5 60% 47° 33% –
3 AM Partly Cloudy 61° 61° 0% 0.00 in NE 5 58% 46° 33% –
4 AM Partly Cloudy 61° 61° 0% 0.00 in NE 5 57% 46° 33% –
5 AM Partly Cloudy 61° 61° 0% 0.00 in NE 5 56% 45° 38% –
6 AM Mostly Sunny 60° 60° 0% 0.00 in NE 5 57% 45° 38% –
7 AM Mostly Sunny 60° 60° 0% 0.00 in NE 5 58% 45° 38% –
8 AM Mostly Sunny 61° 61° 0% 0.00 in Calm 58% 46° 38% –
9 AM Mostly Sunny 64° 64° 0% 0.00 in Calm 53% 47° 38% –
10 AM Mostly Sunny 68° 68° 0% 0.00 in Calm 47% 47° 38% –
11 AM Mostly Sunny 71° 71° 0% 0.00 in Calm 42% 47° 28% –
12 PM Mostly Sunny 73° 73° 0% 0.00 in Calm 40% 47° 28% –
1 PM Mostly Sunny 75° 75° 0% 0.00 in Calm 38% 48° 28% –
2 PM Mostly Sunny 76° 76° 0% 0.00 in Calm 39% 49° 28% –
3 PM Mostly Sunny 76° 76° 0% 0.00 in Calm 40% 50° 28% –
4 PM Mostly Sunny 75° 75° 0% 0.00 in Calm 44% 52° 28% –
5 PM Mostly Sunny 73° 73° 0% 0.00 in Calm 48% 52° 30% –
6 PM Partly Cloudy 70° 70° 0% 0.00 in Calm 52% 52° 30% –
7 PM Partly Cloudy 68° 68° 0% 0.00 in Calm 57% 52° 30% –
8 PM Partly Cloudy 65° 65° 0% 0.00 in Calm 60% 51° 30% –
9 PM Partly Cloudy 64° 64° 0% 0.00 in Calm 63% 51° 30% –
10 PM Partly Cloudy 63° 63° 0% 0.00 in Calm 64% 51° 30% –

National Weather Service forecast updated 25 min 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 4Conservative index and reflects what the press published. Terms of use.