🇺🇸 Weather in Fairfield
Map Overlays:
Hourly Forecast for Fairfield
18:00
33°
0%
19:00
30°
0%
20:00
27°
1%
21:00
24°
1%
22:00
22°
2%
23:00
22°
5%
00:00
21°
8%
01:00
21°
10%
02:00
20°
14%
03:00
20°
12%
04:00
20°
12%
05:00
19°
12%
06:00
19°
12%
07:00
19°
11%
08:00
21°
9%
09:00
22°
7%
10:00
23°
4%
11:00
24°
2%
12:00
25°
2%
13:00
26°
1%
14:00
27°
1%
15:00
27°
1%
16:00
28°
1%
17:00
27°
1%
14-Day Forecast for Fairfield
2026-07-21
Sunny
37° /
20°
2026-07-22
Sunny
28° /
16°
2026-07-23
Sunny
32° /
13°
2026-07-24
Sunny
32° /
12°
2026-07-25
Sunny
34° /
12°
2026-07-26
Sunny
33° /
13°
2026-07-27
Sunny
31° /
13°
Additional Forecasts for Fairfield
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 101.0 μg/m³
O₃ (Ozone) 90.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.0 μg/m³
SO₂ (Sulphur Dioxide) 1.2 μg/m³
PM2.5 (Fine particles) 6.4 μg/m³
PM10 (Coarse particles) 8.4 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in Fairfield — FAQ
Answers refreshed each request based on current conditions in Fairfield.
What is the weather like right now in Fairfield?
Right now in Fairfield, United States the temperature is 37.2°C (feels like 36.8°C), with sunny. Relative humidity is 16% and wind is 19.4 km/h.
What is today's high and low temperature in Fairfield?
Today's forecast high in Fairfield is 37.1°C and the overnight low is 20.0°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Fairfield today?
The chance of precipitation in Fairfield today is 1%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Fairfield differ from nearby cities?
Even short distances can change temperatures noticeably. Fairfield's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.