As of 22:11 CDT

Weather in Fairfield, IL

61°

Fairfield, Sunday, 11 October, 22:11

Clear. Feels like 60°. High 81°, low 56°.

Pressure30.00 inHg

Wind0 mph N

Humidity77%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

Mon, 1290° / 63°

90 °

Fairfield, Monday, 12 October

Clear. High 90°, low 63°.

Pressure29.97 inHg

Wind11.5 mph SW

Humidity43%

Visibility6.2 mi

Dew point60°

Tue, 1389° / 66°

89 °

Fairfield, Tuesday, 13 October

Clear. High 89°, low 66°.

Pressure29.94 inHg

Wind10.5 mph SW

Humidity45%

Visibility6.2 mi

Dew point62°

Wed, 1484° / 71°

0.06

84 °

Fairfield, Wednesday, 14 October

Light rain. High 84°, low 71°.

Pressure30.03 inHg

Wind5.4 mph SW

Humidity65%

Visibility6.2 mi

Dew point70°

Thu, 1583° / 71°

0.41

83 °

Fairfield, Thursday, 15 October

Rain. High 83°, low 71°.

Pressure30.03 inHg

Wind9.7 mph SW

Humidity74%

Visibility6.2 mi

Dew point72°

Fri, 1672° / 54°

0.18

72 °

Fairfield, Friday, 16 October

Rain. High 72°, low 54°.

Pressure30.33 inHg

Wind18.8 mph N

Humidity45%

Visibility—

Dew point40°

Sat, 1759° / 44°

59 °

Fairfield, Saturday, 17 October

Clear. High 59°, low 44°.

Pressure30.50 inHg

Wind8.2 mph E

Humidity42%

Visibility—

Dew point34°

Sun, 1866° / 36°

66 °

Fairfield, Sunday, 18 October

Clear. High 66°, low 36°.

Pressure30.47 inHg

Wind10.9 mph S

Humidity28%

Visibility—

Dew point25°

Mon, 1971° / 46°

71 °

Fairfield, Monday, 19 October

Overcast. High 71°, low 46°.

Pressure30.36 inHg

Wind11.4 mph S

Humidity45%

Visibility—

Dew point43°

Tue, 2077° / 56°

77 °

Fairfield, Tuesday, 20 October

Overcast. High 77°, low 56°.

Pressure30.18 inHg

Wind10 mph S

Humidity50%

Visibility—

Dew point53°

Wed, 2181° / 60°

81 °

Fairfield, Wednesday, 21 October

Mostly clear. High 81°, low 60°.

Pressure30.03 inHg

Wind18.1 mph S

Humidity46%

Visibility—

Dew point55°

Thu, 2269° / 55°

1.22

69 °

Fairfield, Thursday, 22 October

Heavy rain. High 69°, low 55°.

Pressure29.85 inHg

Wind20.9 mph NW

Humidity64%

Visibility—

Dew point52°

Fri, 2358° / 46°

58 °

Fairfield, Friday, 23 October

Clear. High 58°, low 46°.

Pressure30.03 inHg

Wind17.6 mph NW

Humidity38%

Visibility—

Dew point32°

Sat, 2458° / 39°

58 °

Fairfield, Saturday, 24 October

Clear. High 58°, low 39°.

Pressure30.15 inHg

Wind7.2 mph NW

Humidity38%

Visibility—

Dew point28°

Sun, 2568° / 48°

68 °

Fairfield, Sunday, 25 October

Overcast. High 68°, low 48°.

Pressure29.77 inHg

Wind14.3 mph S

Humidity33%

Visibility—

Dew point33°

Mon, 2662° / 48°

62 °

Fairfield, Monday, 26 October

Overcast. High 62°, low 48°.

Pressure29.97 inHg

Wind12 mph N

Humidity54%

Visibility—

Dew point42°

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.