Altadena Weather Today · 7-Day Forecast
Clouds Gather on the Horizon
Changeable skies expected — a day for both sun hat and coat.
Warmest today at 61° · coldest night Friday at 39°
The short of it: Altadena weather on Sunday, 15 November 2026: local time, 14 °C (56 °F) with partly cloudy skies, feeling like 12 °C (54 °F). Today’s high 16 °C (61 °F), low 8 °C (47 °F). No rain expected in the next 24 hours. No warnings in force. Source: Wanted Weather forecast service (global weather models), updated 09:15 local time.
ALTADENA, Sunday. — Altadena may look for an overcast sky this day, with the mercury climbing to about 61° before sinking to 47° by night. A raw day by local measure — 12° below the November average of 73°. Winds are light from the SSE, gusting to 11 mph, and the glass holds steady.
Of the 7 days ahead, today looks the finest at near 61°, while Friday night will be the coldest at 39°. Rain or snow is due on 2 of them, some 1.1 in. in all. No frost is in sight.
For travellers weighing a journey, the Almanac shows a typical November in Altadena brings highs near 73°, lows of 47° and about 1.2 in. of rain over the month. August is the warmest month here at 91°, December the coldest at 43°, and February the wettest with 3.9 in.. The best months to ride in are November and April.
The sun is up 10 h 23 min today, and the days are shortening by about 2 minutes each. The station stands 3,471 ft above the sea; nights in high country cool fast once the sun is down.
The Hours to Come
Temperature by the hour · rain & snow in the hour beneathThe hour-by-hour ledger
| Hour | Sky | Temp | Feels | Wind | Rain · Snow |
|---|---|---|---|---|---|
| Now | Partly cloudy | 56° | 54° | 2 mph | – |
| 10 AM | Partly cloudy | 58° | 55° | 3 mph | – |
| 11 AM | Overcast | 59° | 56° | 3 mph | – |
| 12 PM | Overcast | 60° | 57° | 3 mph | – |
| 1 PM | Partly cloudy | 61° | 58° | 4 mph | – |
| 2 PM | Partly cloudy | 60° | 57° | 4 mph | – |
| 3 PM | Overcast | 59° | 56° | 3 mph | – |
| 4 PM | Partly cloudy | 57° | 55° | 3 mph | – |
| 5 PM | Overcast | 54° | 53° | 2 mph | – |
| 6 PM | Overcast | 52° | 51° | 2 mph | – |
| 7 PM | Partly cloudy | 50° | 48° | 2 mph | – |
| 8 PM | Overcast | 50° | 47° | 2 mph | – |
| 9 PM | Overcast | 50° | 48° | 2 mph | – |
| 10 PM | Overcast | 50° | 48° | 2 mph | – |
| 11 PM | Overcast | 51° | 49° | 2 mph | – |
| 12 AM | Overcast | 51° | 49° | 2 mph | – |
| 1 AM | Overcast | 51° | 49° | 3 mph | – |
| 2 AM | Overcast | 51° | 49° | 3 mph | – |
| 3 AM | Overcast | 52° | 50° | 2 mph | – |
| 4 AM | Overcast | 51° | 49° | 2 mph | – |
| 5 AM | Overcast | 51° | 49° | 2 mph | – |
| 6 AM | Overcast | 51° | 49° | 2 mph | – |
| 7 AM | Partly cloudy | 50° | 49° | 2 mph | – |
| 8 AM | Partly cloudy | 53° | 51° | 2 mph | – |
Seven-Day Outlook · Classified
Highs in large type · pick a dayToday (Nov 15): overcast, high 61°, low 47°, dry, gusts to 15 mph. Sun up 6:25 AM, down 4:48 PM. Cloud lies thick and low. The light is dim and the air is still.
Monday (Nov 16): light showers, high 57°, low 46°, 0.2 in. of rain, gusts to 24 mph. Sun up 6:26 AM, down 4:47 PM. Short showers cross the fields. The sun returns soon after.
Tuesday (Nov 17): overcast, high 54°, low 40°, dry, gusts to 20 mph. Sun up 6:27 AM, down 4:47 PM. Cloud lies thick and low. The light is dim and the air is still.
Wednesday (Nov 18): light rain, high 54°, low 40°, 0.01 in. of rain, gusts to 20 mph. Sun up 6:28 AM, down 4:46 PM. A gentle rain falls over the district. Keep under a roof if you can.
Thursday (Nov 19): light showers, high 51°, low 42°, 0.9 in. of rain, gusts to 34 mph. Sun up 6:29 AM, down 4:46 PM. Short showers cross the fields. The sun returns soon after.
Friday (Nov 20): overcast, high 55°, low 39°, dry, gusts to 20 mph. Sun up 6:30 AM, down 4:45 PM. Cloud lies thick and low. The light is dim and the air is still.
Saturday (Nov 21): partly cloudy, high 56°, low 41°, dry, gusts to 13 mph. Sun up 6:31 AM, down 4:45 PM. Changeable skies expected — a day for both sun hat and coat.
The Week in Figures
| Day | Low · High | Rain · Snow | Gusts | Daylight | |
|---|---|---|---|---|---|
| Today | 47°61° | dry | 15 mph | 10 h 23 min | |
| Monday | 46°57° | 0.2 in. | 24 mph | 10 h 21 min | |
| Tuesday | 40°54° | dry | 20 mph | 10 h 20 min | |
| Wednesday | 40°54° | 0.01 in. | 20 mph | 10 h 18 min | |
| Thursday | 42°51° | 0.9 in. | 34 mph | 10 h 17 min | |
| Friday | 39°55° | dry | 20 mph | 10 h 15 min | |
| Saturday | 41°56° | dry | 13 mph | 10 h 14 min |
Warmest: today at 61°. Wettest: Thursday, 0.9 in. of rain. Strongest gusts: Thursday, 34 mph.