Currently: 66 °F. Passing clouds. (Weather station: San Francisco International Airport, USA). See more current weatherPast Weather in Foster City — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
50
53
56
59
62
65
68
71
74
77
Fri, Oct 17
Lo:70
12 pm
Hi:73
10
Lo:61
6 pm
Hi:70
10
Sat, Oct 18
Lo:55
12 am
Hi:61
5
Lo:55
6 am
Hi:66
2
Lo:66
12 pm
Hi:75
5
Lo:63
6 pm
Hi:75
8
Sun, Oct 19
Lo:55
12 am
Hi:63
9
Lo:55
6 am
Hi:63
9
Lo:61
12 pm
Hi:70
14
Lo:59
6 pm
Hi:64
11
Mon, Oct 20
Lo:55
12 am
Hi:59
4
Lo:55
6 am
Hi:73
7
Lo:73
12 pm
Hi:75
4
Lo:64
6 pm
Hi:73
7
Tue, Oct 21
Lo:59
12 am
Hi:64
2
Lo:57
6 am
Hi:68
1
Lo:63
12 pm
Hi:70
14
Lo:59
6 pm
Hi:63
7
Wed, Oct 22
Lo:57
12 am
Hi:61
6
Lo:61
6 am
Hi:64
9
Lo:63
12 pm
Hi:66
12
Lo:59
6 pm
Hi:63
9
Thu, Oct 23
Lo:57
12 am
Hi:59
9
Lo:57
6 am
Hi:63
8
Lo:61
12 pm
Hi:64
12
Lo:57
6 pm
Hi:61
13
Fri, Oct 24
Lo:57
12 am
Hi:59
7
Lo:57
6 am
Hi:63
6
Lo:61
12 pm
Hi:64
14
Lo:55
6 pm
Hi:61
9
Sat, Oct 25
Lo:55
12 am
Hi:57
2
Lo:57
6 am
Hi:64
8
Lo:64
12 pm
Hi:66
9
Lo:61
6 pm
Hi:64
4
Sun, Oct 26
Lo:57
12 am
Hi:61
4
Lo:57
6 am
Hi:66
7
Lo:61
12 pm
Hi:66
17
Lo:57
6 pm
Hi:61
16
Mon, Oct 27
Lo:55
12 am
Hi:57
11
Lo:55
6 am
Hi:63
7
Lo:63
12 pm
Hi:68
10
Lo:57
6 pm
Hi:63
9
Tue, Oct 28
Lo:54
12 am
Hi:57
2
Lo:54
6 am
Hi:64
2
Lo:64
12 pm
Hi:75
5
Lo:59
6 pm
Hi:70
12
Wed, Oct 29
Lo:55
12 am
Hi:59
2
Lo:57
6 am
Hi:64
4
12 pm
N/A
0
Lo:59
6 pm
Hi:59
11
Thu, Oct 30
Lo:55
12 am
Hi:59
16
Lo:55
6 am
Hi:61
13
Lo:57
12 pm
Hi:63
19
Lo:55
6 pm
Hi:57
16
Fri, Oct 31
Lo:54
12 am
Hi:57
6
Lo:52
6 am
Hi:61
3
Lo:59
12 pm
Hi:64
12
Lo:55
6 pm
Hi:59
11
Sat, Nov 1
Lo:54
12 am
Hi:55
4
Lo:54
6 am
Hi:63
10
Lo:63
12 pm
Hi:70
14
Friday, October 17, 2025, 12:00 pm — 6:00 pm
73 / 70 °F
Passing clouds.
Humidity: 57%
Barometer: 29.95 "Hg
WNW
Wind: 9.943 mph
Foster City Temperature Yesterday
Maximum temperature yesterday: 65 °F (at 2:31 pm)
Minimum temperature yesterday: 52 °F (at 6:56 am)
Average temperature yesterday: 57 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 76 °F (Oct 18, 4:56 pm) | 97% (Oct 19, 5:56 am) | 30.20 "Hg (Oct 19, 5:56 am) |
| Low | 52 °F (Oct 31, 6:56 am) | 32% (Oct 20, 12:56 pm) | 29.93 "Hg (Oct 21, 5:56 pm) |
| Average | 61 °F | 77% | 30.06 "Hg |
| * Reported Oct 17 3:56 pm — Nov 1 3:56 pm, Foster City. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Foster City Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 3:56 pm Sat, Nov 1 | | 67 °F | Passing clouds. | 18 mph | ↑ | 66% | 30.07 "Hg | 10 mi |
| 2:56 pm |  | 70 °F | Sunny. | 15 mph | ↑ | 53% | 30.08 "Hg | 10 mi |
| 1:56 pm | | 66 °F | Passing clouds. | 15 mph | ↑ | 63% | 30.09 "Hg | 10 mi |
| 12:56 pm | | 64 °F | Passing clouds. | 14 mph | ↑ | 70% | 30.11 "Hg | 10 mi |
| 11:56 am | | 62 °F | Passing clouds. | 8 mph | ↑ | 73% | 30.14 "Hg | 10 mi |
| 10:56 am | | 59 °F | Passing clouds. | 14 mph | ↑ | 81% | 30.14 "Hg | 10 mi |
| 9:56 am | | 58 °F | Passing clouds. | 8 mph | ↑ | 84% | 30.13 "Hg | 10 mi |
| 8:56 am | | 55 °F | Passing clouds. | 7 mph | ↑ | 93% | 30.12 "Hg | 10 mi |
| 7:56 am | | 54 °F | Passing clouds. | 13 mph | ↑ | 93% | 30.10 "Hg | 10 mi |
| 6:56 am |  | 54 °F | Passing clouds. | 12 mph | ↑ | 93% | 30.08 "Hg | 10 mi |
| 5:56 am | | 54 °F | Passing clouds. | 8 mph | ↑ | 93% | 30.07 "Hg | 10 mi |
| 4:56 am | | 54 °F | Passing clouds. | 6 mph | ↑ | 93% | 30.06 "Hg | 10 mi |
| 3:56 am |  | 54 °F | Clear. | 3 mph | ↑ | 90% | 30.05 "Hg | 10 mi |
| 2:56 am | | 53 °F | Clear. | 5 mph | ↑ | 93% | 30.06 "Hg | 10 mi |
| 1:56 am | | 53 °F | Clear. | 6 mph | ↑ | 89% | 30.06 "Hg | 10 mi |
| 12:56 am | | 55 °F | Clear. | No wind | ↑ | 83% | 30.06 "Hg | 10 mi |
| 11:56 pm Fri, Oct 31 | | 55 °F | Clear. | 5 mph | ↑ | 87% | 30.06 "Hg | 10 mi |
| 10:56 pm | | 55 °F | Clear. | 6 mph | ↑ | 87% | 30.06 "Hg | 10 mi |
| 9:56 pm | | 56 °F | Clear. | 8 mph | ↑ | 87% | 30.05 "Hg | 10 mi |
| 8:56 pm | | 57 °F | Clear. | 10 mph | ↑ | 83% | 30.03 "Hg | 10 mi |
| 7:56 pm | | 57 °F | Clear. | 14 mph | ↑ | 83% | 30.03 "Hg | 10 mi |
| 6:56 pm | | 58 °F | Passing clouds. | 16 mph | ↑ | 81% | 30.02 "Hg | 10 mi |
| 5:56 pm | | 59 °F | Passing clouds. | 17 mph | ↑ | 78% | 30.02 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||