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As of 14:21 CDT

Weather in Fairfield, IL

89°Current weather

Fairfield, Saturday, 8 August, 14:21

Clear. Feels like 100°. High 89°, low 72°.

Pressure30.03 inHg
Wind7 mph SW
Humidity64%
Visibility6.2 mi
Dew point75°
Sun, 0992° / 74°0Partly cloudy
92 °Partly cloudy

Fairfield, Sunday, 9 August

Partly cloudy. High 92°, low 74°.

Pressure30.03 inHg
Wind11.8 mph S
Humidity56%
Visibility6.2 mi
Dew point70°
Mon, 1096° / 76°0Mostly clear
96 °Mostly clear

Fairfield, Monday, 10 August

Mostly clear. High 96°, low 76°.

Pressure30.00 inHg
Wind15 mph SW
Humidity52%
Visibility6.2 mi
Dew point71°
Tue, 1195° / 76°0Mostly clear
95 °Mostly clear

Fairfield, Tuesday, 11 August

Mostly clear. High 95°, low 76°.

Pressure29.91 inHg
Wind14.7 mph SW
Humidity46%
Visibility6.2 mi
Dew point70°
Wed, 1292° / 71°0.05Light rain
92 °Light rain

Fairfield, Wednesday, 12 August

Light rain. High 92°, low 71°.

Pressure29.83 inHg
Wind8.8 mph W
Humidity54%
Visibility6.2 mi
Dew point71°
Thu, 1383° / 71°1.08Heavy rain
83 °Heavy rain

Fairfield, Thursday, 13 August

Heavy rain. High 83°, low 71°.

Pressure29.88 inHg
Wind10.6 mph SW
Humidity72%
Visibility—
Dew point71°
Fri, 1477° / 62°0.07Light rain
77 °Light rain

Fairfield, Friday, 14 August

Light rain. High 77°, low 62°.

Pressure30.12 inHg
Wind12.7 mph NE
Humidity56%
Visibility—
Dew point58°
Sat, 1576° / 56°0Partly cloudy
76 °Partly cloudy

Fairfield, Saturday, 15 August

Partly cloudy. High 76°, low 56°.

Pressure30.30 inHg
Wind7.7 mph E
Humidity52%
Visibility—
Dew point54°
Sun, 1681° / 59°0.01Light rain
81 °Light rain

Fairfield, Sunday, 16 August

Light rain. High 81°, low 59°.

Pressure30.21 inHg
Wind8.8 mph SE
Humidity48%
Visibility—
Dew point55°
Mon, 1787° / 69°0.16Light rain
87 °Light rain

Fairfield, Monday, 17 August

Light rain. High 87°, low 69°.

Pressure29.97 inHg
Wind17.7 mph SW
Humidity63%
Visibility—
Dew point70°
Tue, 1887° / 71°0Overcast
87 °Overcast

Fairfield, Tuesday, 18 August

Overcast. High 87°, low 71°.

Pressure29.94 inHg
Wind11 mph N
Humidity64%
Visibility—
Dew point71°
Wed, 1991° / 71°0Partly cloudy
91 °Partly cloudy

Fairfield, Wednesday, 19 August

Partly cloudy. High 91°, low 71°.

Pressure29.91 inHg
Wind7.9 mph E
Humidity58%
Visibility—
Dew point69°
Thu, 2085° / 72°1.5Heavy rain
85 °Heavy rain

Fairfield, Thursday, 20 August

Heavy rain. High 85°, low 72°.

Pressure29.85 inHg
Wind11.5 mph SE
Humidity80%
Visibility—
Dew point73°
Fri, 2182° / 71°0.14Light rain
82 °Light rain

Fairfield, Friday, 21 August

Light rain. High 82°, low 71°.

Pressure29.91 inHg
Wind11 mph N
Humidity75%
Visibility—
Dew point70°
Sat, 2283° / 65°0Overcast
83 °Overcast

Fairfield, Saturday, 22 August

Overcast. High 83°, low 65°.

Pressure29.94 inHg
Wind7 mph NE
Humidity54%
Visibility—
Dew point61°
Sun, 2375° / 61°0Overcast
75 °Overcast

Fairfield, Sunday, 23 August

Overcast. High 75°, low 61°.

Pressure30.12 inHg
Wind13.5 mph NE
Humidity61%
Visibility—
Dew point57°

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.