🇺🇸 Weather in Foster City
Map Overlays:
Hourly Forecast for Foster City
03:00
13°
0%
04:00
12°
0%
05:00
11°
0%
06:00
12°
0%
07:00
12°
0%
08:00
13°
0%
09:00
14°
0%
10:00
14°
0%
11:00
14°
0%
12:00
14°
100%
13:00
15°
62%
14:00
15°
0%
15:00
15°
63%
16:00
15°
84%
17:00
15°
0%
18:00
14°
0%
19:00
14°
0%
20:00
13°
0%
21:00
12°
0%
22:00
12°
0%
23:00
12°
0%
00:00
12°
0%
01:00
11°
0%
02:00
11°
0%
14-Day Forecast for Foster City
Fri, May 29
Patchy rain nearby
16° /
11°
Sat, May 30
Sunny
18° /
10°
Sun, May 31
Sunny
20° /
9°
Mon, Jun 01
Sunny
21° /
9°
Tue, Jun 02
Sunny
19° /
10°
Wed, Jun 03
Sunny
20° /
12°
Thu, Jun 04
Sunny
19° /
12°
Fri, Jun 05
Sunny
18° /
11°
Sat, Jun 06
Sunny
18° /
10°
Sun, Jun 07
Sunny
18° /
10°
Mon, Jun 08
Sunny
17° /
11°
Tue, Jun 09
Sunny
19° /
10°
Wed, Jun 10
Sunny
20° /
10°
Thu, Jun 11
Sunny
18° /
11°
Additional Forecasts for Foster City
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 112.8 μg/m³
O₃ (Ozone) 68.0 μg/m³
NO₂ (Nitrogen Dioxide) 5.2 μg/m³
SO₂ (Sulphur Dioxide) 1.6 μg/m³
PM2.5 (Fine particles) 11.4 μg/m³
PM10 (Coarse particles) 17.1 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Frequently Asked Questions about Weather in Foster City
What is the temperature in Foster City right now?
The current temperature in Foster City is 14°C (57°F), clear (feels like 14°C).
What's the weather like in Foster City right now?
Conditions in Foster City right now: Clear, humidity 82%, wind 8 km/h W.
What is today's forecast for Foster City?
Today in Foster City: high 16°C, low 11°C, patchy rain nearby. Chance of rain: 84%.
What is the 7-day weather forecast for Foster City?
Daily highs and lows for Foster City:
- 2026-05-29: 16°C / 11°C
- 2026-05-30: 18°C / 10°C
- 2026-05-31: 20°C / 9°C
- 2026-06-01: 21°C / 9°C
- 2026-06-02: 19°C / 10°C
- 2026-06-03: 20°C / 12°C
- 2026-06-04: 19°C / 12°C
Is it going to rain in Foster City today?
There is a 84% chance of rain in Foster City today. Total expected precipitation: 0.11 mm.
What is the wind speed in Foster City right now?
Wind in Foster City is currently 8 km/h (5 mph) from the W.
What is the UV index in Foster City right now?
The UV index in Foster City is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
