As of 11:32 CDT

Weather in Fairfield, IL

82°

Fairfield, Friday, 9 October, 11:32

Clear. Feels like 80°. High 84°, low 52°.

Pressure30.15 inHg

Wind11.5 mph SE

Humidity24%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Sat, 1076° / 55°

0.01

76 °

Fairfield, Saturday, 10 October

Light rain. High 76°, low 55°.

Pressure30.06 inHg

Wind6.6 mph E

Humidity52%

Visibility6.2 mi

Dew point52°

Sun, 1180° / 54°

0.04

80 °

Fairfield, Sunday, 11 October

Light rain. High 80°, low 54°.

Pressure29.94 inHg

Wind8.7 mph NW

Humidity59%

Visibility6.2 mi

Dew point59°

Mon, 1288° / 64°

88 °

Fairfield, Monday, 12 October

Clear. High 88°, low 64°.

Pressure29.94 inHg

Wind10.3 mph SW

Humidity46%

Visibility6.2 mi

Dew point61°

Tue, 1390° / 70°

90 °

Fairfield, Tuesday, 13 October

Clear. High 90°, low 70°.

Pressure29.88 inHg

Wind12 mph SW

Humidity48%

Visibility—

Dew point63°

Wed, 1479° / 71°

0.26

79 °

Fairfield, Wednesday, 14 October

Rain. High 79°, low 71°.

Pressure29.94 inHg

Wind5.7 mph N

Humidity72%

Visibility—

Dew point68°

Thu, 1578° / 58°

0.12

78 °

Fairfield, Thursday, 15 October

Light rain. High 78°, low 58°.

Pressure30.00 inHg

Wind11.3 mph NE

Humidity55%

Visibility—

Dew point53°

Fri, 1679° / 51°

0.17

79 °

Fairfield, Friday, 16 October

Light rain. High 79°, low 51°.

Pressure30.00 inHg

Wind22.5 mph SW

Humidity33%

Visibility—

Dew point37°

Sat, 1752° / 40°

52 °

Fairfield, Saturday, 17 October

Clear. High 52°, low 40°.

Pressure30.39 inHg

Wind20 mph NW

Humidity33%

Visibility—

Dew point21°

Sun, 1858° / 34°

58 °

Fairfield, Sunday, 18 October

Clear. High 58°, low 34°.

Pressure30.39 inHg

Wind7.1 mph S

Humidity28%

Visibility—

Dew point20°

Mon, 1967° / 42°

67 °

Fairfield, Monday, 19 October

Overcast. High 67°, low 42°.

Pressure30.30 inHg

Wind9.9 mph SW

Humidity23%

Visibility—

Dew point23°

Tue, 2072° / 46°

72 °

Fairfield, Tuesday, 20 October

Clear. High 72°, low 46°.

Pressure30.36 inHg

Wind7.4 mph S

Humidity26%

Visibility—

Dew point31°

Wed, 2175° / 50°

75 °

Fairfield, Wednesday, 21 October

Overcast. High 75°, low 50°.

Pressure30.27 inHg

Wind10.9 mph S

Humidity28%

Visibility—

Dew point35°

Thu, 2277° / 51°

77 °

Fairfield, Thursday, 22 October

Overcast. High 77°, low 51°.

Pressure30.06 inHg

Wind15.4 mph S

Humidity34%

Visibility—

Dew point42°

Fri, 2365° / 46°

0.04

65 °

Fairfield, Friday, 23 October

Light rain. High 65°, low 46°.

Pressure30.06 inHg

Wind17.3 mph NW

Humidity37%

Visibility—

Dew point33°

Sat, 2452° / 37°

52 °

Fairfield, Saturday, 24 October

Clear. High 52°, low 37°.

Pressure30.18 inHg

Wind14.6 mph NW

Humidity38%

Visibility—

Dew point25°

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.