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As of 05:42 CDT

Weather in Fairfield, IL

63°Current weather

Fairfield, Saturday, 10 October, 05:42

Overcast. Feels like 61°. High 78°, low 53°.

Pressure30.06 inHg
Wind0 mph N
Humidity55%
Visibility6.2 mi
Dew point46°
Sun, 1183° / 52°0Clear
83 °Clear

Fairfield, Sunday, 11 October

Clear. High 83°, low 52°.

Pressure29.97 inHg
Wind6.7 mph NW
Humidity56%
Visibility6.2 mi
Dew point57°
Mon, 1289° / 63°0Clear
89 °Clear

Fairfield, Monday, 12 October

Clear. High 89°, low 63°.

Pressure29.94 inHg
Wind10.7 mph SW
Humidity41%
Visibility6.2 mi
Dew point59°
Tue, 1390° / 68°0Clear
90 °Clear

Fairfield, Tuesday, 13 October

Clear. High 90°, low 68°.

Pressure29.91 inHg
Wind10.8 mph SW
Humidity40%
Visibility6.2 mi
Dew point60°
Wed, 1480° / 72°0.17Light rain
80 °Light rain

Fairfield, Wednesday, 14 October

Light rain. High 80°, low 72°.

Pressure30.00 inHg
Wind9 mph SW
Humidity71%
Visibility—
Dew point69°
Thu, 1574° / 64°0.09Light rain
74 °Light rain

Fairfield, Thursday, 15 October

Light rain. High 74°, low 64°.

Pressure30.21 inHg
Wind13.8 mph SE
Humidity55%
Visibility—
Dew point56°
Fri, 1670° / 59°0.07Light rain
70 °Light rain

Fairfield, Friday, 16 October

Light rain. High 70°, low 59°.

Pressure30.00 inHg
Wind14.5 mph SW
Humidity46%
Visibility—
Dew point46°
Sat, 1755° / 42°0Overcast
55 °Overcast

Fairfield, Saturday, 17 October

Overcast. High 55°, low 42°.

Pressure30.18 inHg
Wind18.3 mph NW
Humidity51%
Visibility—
Dew point29°
Sun, 1853° / 38°0Partly cloudy
53 °Partly cloudy

Fairfield, Sunday, 18 October

Partly cloudy. High 53°, low 38°.

Pressure30.42 inHg
Wind15.5 mph NW
Humidity45%
Visibility—
Dew point29°
Mon, 1956° / 34°0Partly cloudy
56 °Partly cloudy

Fairfield, Monday, 19 October

Partly cloudy. High 56°, low 34°.

Pressure30.42 inHg
Wind6.4 mph E
Humidity30%
Visibility—
Dew point20°
Tue, 2061° / 38°0Overcast
61 °Overcast

Fairfield, Tuesday, 20 October

Overcast. High 61°, low 38°.

Pressure30.33 inHg
Wind6.6 mph SE
Humidity28%
Visibility—
Dew point23°
Wed, 2169° / 42°0Clear
69 °Clear

Fairfield, Wednesday, 21 October

Clear. High 69°, low 42°.

Pressure30.30 inHg
Wind8 mph SE
Humidity27%
Visibility—
Dew point29°
Thu, 2272° / 47°0Clear
72 °Clear

Fairfield, Thursday, 22 October

Clear. High 72°, low 47°.

Pressure30.18 inHg
Wind13.2 mph S
Humidity29%
Visibility—
Dew point34°
Fri, 2362° / 50°0.2Rain
62 °Rain

Fairfield, Friday, 23 October

Rain. High 62°, low 50°.

Pressure29.97 inHg
Wind16.2 mph S
Humidity60%
Visibility—
Dew point46°
Sat, 2472° / 49°0.58Rain
72 °Rain

Fairfield, Saturday, 24 October

Rain. High 72°, low 49°.

Pressure29.85 inHg
Wind14.8 mph SW
Humidity39%
Visibility—
Dew point43°
Sun, 2560° / 45°0.05Light rain
60 °Light rain

Fairfield, Sunday, 25 October

Light rain. High 60°, low 45°.

Pressure29.97 inHg
Wind14.1 mph NW
Humidity49%
Visibility—
Dew point37°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Fairfield, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Fairfield, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.