San Dimas, CA Hourly Weather Forecast
Next 48 Hours
Sun, Oct 18th 2026
Sunny skies in the morning, with Clear conditions expected by night. Temps range from 74° to 86°. Light winds, shifting from SW to S at 6.6 mph, with humidity levels between 15% to 37%, and an avg barometric pressure of 29.91 inHg.
| Sun, Oct 18th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
2 PM Sunny UV: 5.2 |
85°F Feels 78°F |
15% | 5.1 SW | 29.91 | 32°F | 1% |
3 PM SunnyUV: 3.6 |
86°F Feels 78°F |
15% | 6.9 WSW | 29.89 | 33.2°F | 1% |
4 PM SunnyUV: 1.9 |
85°F Feels 77°F |
18% | 9.2 SW | 29.89 | 36.6°F | 0% |
5 PM SunnyUV: 0.6 |
83°F Feels 75°F |
24% | 10.3 SW | 29.89 | 42.3°F | 0% |
6 PM SunnyUV: 0 |
80°F Feels 74°F |
33% | 9.8 SW | 29.9 | 47.9°F | 1% |
7 PM Clear UV: 0 |
78°F Feels 73°F |
36% | 8.5 WSW | 29.92 | 48.9°F | 1% |
8 PM ClearUV: 0 |
77°F Feels 73°F |
34% | 6 WSW | 29.93 | 46.8°F | 1% |
9 PM ClearUV: 0 |
76°F Feels 73°F |
33% | 4.5 WSW | 29.93 | 45.1°F | 1% |
10 PM ClearUV: 0 |
75°F Feels 72°F |
34% | 3.6 SSW | 29.94 | 45°F | 1% |
11 PM ClearUV: 0 |
74°F Feels 72°F |
37% | 2.5 S | 29.94 | 46.1°F | 1% |
Mon, Oct 19th 2026
Sunny skies early, becoming Clear conditions later. Temps range from 71° to 84°. Light winds, shifting from SE to WSW at 4.1 mph, while humidity ranges from 26% to 50%, and an avg barometric pressure of 29.88 inHg.
| Mon, Oct 19th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM ClearUV: 0 |
73°F Feels 72°F |
39% | 1.1 SE | 29.93 | 46.8°F | 1% |
1 AM ClearUV: 0 |
73°F Feels 72°F |
39% | 0.7 SE | 29.92 | 46.5°F | 1% |
2 AM ClearUV: 0 |
73°F Feels 71°F |
39% | 0.9 SSE | 29.92 | 46.3°F | 1% |
3 AM ClearUV: 0 |
72°F Feels 71°F |
40% | 0.7 SSE | 29.91 | 46.1°F | 1% |
4 AM ClearUV: 0 |
71°F Feels 70°F |
40% | 0.7 SW | 29.9 | 46.2°F | 1% |
5 AM ClearUV: 0 |
71°F Feels 70°F |
41% | 0.7 WNW | 29.91 | 46.2°F | 1% |
6 AM ClearUV: 0 |
71°F Feels 69°F |
40% | 0.7 NNE | 29.91 | 45.6°F | 1% |
7 AM ClearUV: 0 |
71°F Feels 69°F |
39% | 1.1 ENE | 29.91 | 44.6°F | 1% |
8 AM Smoky Haze UV: 0.2 |
72°F Feels 70°F |
36% | 1.1 E | 29.91 | 43.8°F | 1% |
9 AM SunnyUV: 0.9 |
75°F Feels 72°F |
33% | 2 SE | 29.92 | 43.8°F | 1% |
10 AM SunnyUV: 2.3 |
77°F Feels 75°F |
31% | 2 SSE | 29.92 | 44.3°F | 1% |
11 AM SunnyUV: 3.9 |
79°F Feels 77°F |
29% | 2.7 S | 29.91 | 44.5°F | 0% |
12 PM SunnyUV: 5.1 |
81°F Feels 78°F |
27% | 4.5 SW | 29.9 | 44.4°F | 0% |
1 PM SunnyUV: 5.5 |
83°F Feels 78°F |
26% | 6.5 SW | 29.88 | 44.1°F | 0% |
2 PM SunnyUV: 4.8 |
84°F Feels 78°F |
26% | 8.1 WSW | 29.84 | 45.1°F | 0% |
3 PM SunnyUV: 3.5 |
84°F Feels 77°F |
27% | 9.6 SW | 29.83 | 46°F | 0% |
4 PM SunnyUV: 1.8 |
83°F Feels 76°F |
28% | 9.8 SW | 29.82 | 46.4°F | 0% |
5 PM SunnyUV: 0.6 |
81°F Feels 75°F |
30% | 9.4 SW | 29.82 | 46.7°F | 0% |
6 PM SunnyUV: 0 |
78°F Feels 73°F |
33% | 8.3 SW | 29.82 | 47.3°F | 1% |
7 PM ClearUV: 0 |
76°F Feels 72°F |
37% | 7.2 SW | 29.83 | 48.5°F | 1% |
8 PM ClearUV: 0 |
75°F Feels 71°F |
42% | 6.5 SW | 29.85 | 50°F | 1% |
9 PM ClearUV: 0 |
74°F Feels 71°F |
45% | 4.7 SW | 29.84 | 51°F | 1% |
10 PM ClearUV: 0 |
73°F Feels 71°F |
48% | 4.5 SW | 29.85 | 51.7°F | 1% |
11 PM ClearUV: 0 |
72°F Feels 71°F |
50% | 3.8 WSW | 29.86 | 52.3°F | 2% |
Tue, Oct 20th 2026
Expect consistent Smoky haze skies throughout the day. Temps range from 68° to 80°. Calm winds, shifting from WSW to S at 2.5 mph, with humidity levels between 33% to 66%, and an avg barometric pressure of 29.86 inHg.
| Tue, Oct 20th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM ClearUV: 0 |
71°F Feels 71°F |
52% | 2.9 WSW | 29.85 | 52.7°F | 2% |
1 AM ClearUV: 0 |
71°F Feels 70°F |
54% | 2.9 SW | 29.85 | 53°F | 2% |
2 AM Smoky Haze UV: 0 |
70°F Feels 70°F |
55% | 2 WSW | 29.84 | 53.4°F | 3% |
3 AM Smoky HazeUV: 0 |
70°F Feels 69°F |
57% | 2.2 WSW | 29.84 | 53.7°F | 3% |
4 AM Smoky HazeUV: 0 |
69°F Feels 68°F |
59% | 3.4 WSW | 29.84 | 54.2°F | 3% |
5 AM Smoky HazeUV: 0 |
68°F Feels 68°F |
62% | 3.1 WSW | 29.85 | 55°F | 4% |
6 AM Smoky HazeUV: 0 |
68°F Feels 69°F |
64% | 1.6 SW | 29.85 | 55.5°F | 4% |
7 AM Smoky HazeUV: 0 |
68°F Feels 69°F |
66% | 1.3 SSW | 29.86 | 55.6°F | 4% |
8 AM Smoky HazeUV: 0.2 |
69°F Feels 69°F |
63% | 1.3 WSW | 29.87 | 55.3°F | 4% |
9 AM Smoky HazeUV: 0.9 |
71°F Feels 71°F |
56% | 1.6 SW | 29.88 | 54.4°F | 3% |
10 AM SunnyUV: 2.3 |
73°F Feels 73°F |
50% | 2.7 SSW | 29.89 | 53.3°F | 2% |
11 AM SunnyUV: 3.9 |
75°F Feels 74°F |
44% | 2.9 SSW | 29.88 | 51.8°F | 1% |
12 PM SunnyUV: 5.2 |
78°F Feels 76°F |
38% | 3.4 S | 29.87 | 49.7°F | 1% |
1 PM SunnyUV: 5.5 |
80°F Feels 77°F |
33% | 3.8 S | 29.85 | 47.9°F | 1% |
Ask About Weather
Try our Weather Chatbot. It provides up to 10 days of forecast information!Hourly Weather Nearby
More Local Information
Bookmark and Share
