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As of 09:23 CDT

Weather in Fairfield, IL

73°Current weather

Fairfield, Tuesday, 13 October, 09:23

Clear. Feels like 73°. High 90°, low 66°.

Pressure29.97 inHg
Wind6.9 mph S
Humidity49%
Visibility6.2 mi
Dew point55°
Wed, 1482° / 67°0.18Rain
82 °Rain

Fairfield, Wednesday, 14 October

Rain. High 82°, low 67°.

Pressure30.03 inHg
Wind6.8 mph SW
Humidity94%
Visibility2.4 mi
Dew point72°
Thu, 1584° / 67°0.12Rain
84 °Rain

Fairfield, Thursday, 15 October

Rain. High 84°, low 67°.

Pressure30.00 inHg
Wind12.7 mph SW
Humidity73%
Visibility6.2 mi
Dew point71°
Fri, 1674° / 54°0.04Light rain
74 °Light rain

Fairfield, Friday, 16 October

Light rain. High 74°, low 54°.

Pressure30.18 inHg
Wind22.3 mph NW
Humidity37%
Visibility6.2 mi
Dew point33°
Sat, 1761° / 45°0Clear
61 °Clear

Fairfield, Saturday, 17 October

Clear. High 61°, low 45°.

Pressure30.50 inHg
Wind11.9 mph N
Humidity46%
Visibility—
Dew point36°
Sun, 1866° / 43°0Clear
66 °Clear

Fairfield, Sunday, 18 October

Clear. High 66°, low 43°.

Pressure30.39 inHg
Wind7.4 mph S
Humidity37%
Visibility—
Dew point34°
Mon, 1974° / 52°0Overcast
74 °Overcast

Fairfield, Monday, 19 October

Overcast. High 74°, low 52°.

Pressure30.21 inHg
Wind8.3 mph SW
Humidity52%
Visibility—
Dew point51°
Tue, 2066° / 55°0.32Rain
66 °Rain

Fairfield, Tuesday, 20 October

Rain. High 66°, low 55°.

Pressure30.24 inHg
Wind7.7 mph S
Humidity84%
Visibility—
Dew point60°
Wed, 2170° / 61°0.24Rain
70 °Rain

Fairfield, Wednesday, 21 October

Rain. High 70°, low 61°.

Pressure30.24 inHg
Wind8.2 mph SE
Humidity93%
Visibility—
Dew point62°
Thu, 2281° / 63°0Overcast
81 °Overcast

Fairfield, Thursday, 22 October

Overcast. High 81°, low 63°.

Pressure30.12 inHg
Wind17.8 mph S
Humidity47%
Visibility—
Dew point56°
Fri, 2381° / 65°0Partly cloudy
81 °Partly cloudy

Fairfield, Friday, 23 October

Partly cloudy. High 81°, low 65°.

Pressure30.06 inHg
Wind21.4 mph S
Humidity44%
Visibility—
Dew point53°
Sat, 2469° / 59°0Overcast
69 °Overcast

Fairfield, Saturday, 24 October

Overcast. High 69°, low 59°.

Pressure30.30 inHg
Wind10.9 mph NW
Humidity39%
Visibility—
Dew point38°
Sun, 2567° / 53°0Overcast
67 °Overcast

Fairfield, Sunday, 25 October

Overcast. High 67°, low 53°.

Pressure30.27 inHg
Wind8.2 mph NW
Humidity46%
Visibility—
Dew point39°
Mon, 2661° / 48°0Overcast
61 °Overcast

Fairfield, Monday, 26 October

Overcast. High 61°, low 48°.

Pressure30.18 inHg
Wind14 mph N
Humidity32%
Visibility—
Dew point29°
Tue, 2760° / 45°0Overcast
60 °Overcast

Fairfield, Tuesday, 27 October

Overcast. High 60°, low 45°.

Pressure30.24 inHg
Wind8.1 mph E
Humidity37%
Visibility—
Dew point30°
Wed, 2870° / 47°0.01Light rain
70 °Light rain

Fairfield, Wednesday, 28 October

Light rain. High 70°, low 47°.

Pressure30.12 inHg
Wind9.9 mph S
Humidity29%
Visibility—
Dew point29°

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.