As of 11:17 CDT

Weather in Centralia, IL

82°

Centralia, Friday, 9 October, 11:17

Clear. Feels like 80°. High 85°, low 53°.

Pressure30.15 inHg

Wind9.2 mph SE

Humidity30%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Sat, 1076° / 55°

76 °

Centralia, Saturday, 10 October

Overcast. High 76°, low 55°.

Pressure30.06 inHg

Wind6.5 mph E

Humidity54%

Visibility6.2 mi

Dew point53°

Sun, 1180° / 54°

80 °

Centralia, Sunday, 11 October

Clear. High 80°, low 54°.

Pressure29.94 inHg

Wind6.2 mph NW

Humidity60%

Visibility6.2 mi

Dew point58°

Mon, 1289° / 64°

89 °

Centralia, Monday, 12 October

Clear. High 89°, low 64°.

Pressure29.91 inHg

Wind9.8 mph SW

Humidity44%

Visibility6.2 mi

Dew point60°

Tue, 1389° / 70°

89 °

Centralia, Tuesday, 13 October

Overcast. High 89°, low 70°.

Pressure29.85 inHg

Wind11.3 mph SW

Humidity50%

Visibility—

Dew point65°

Wed, 1476° / 69°

0.53

76 °

Centralia, Wednesday, 14 October

Rain. High 76°, low 69°.

Pressure29.97 inHg

Wind6.8 mph NE

Humidity89%

Visibility—

Dew point70°

Thu, 1582° / 58°

0.17

82 °

Centralia, Thursday, 15 October

Rain. High 82°, low 58°.

Pressure29.97 inHg

Wind11.6 mph E

Humidity61%

Visibility—

Dew point56°

Fri, 1679° / 50°

0.06

79 °

Centralia, Friday, 16 October

Light rain. High 79°, low 50°.

Pressure30.03 inHg

Wind24.2 mph NW

Humidity29%

Visibility—

Dew point33°

Sat, 1752° / 39°

52 °

Centralia, Saturday, 17 October

Clear. High 52°, low 39°.

Pressure30.42 inHg

Wind19.8 mph NW

Humidity33%

Visibility—

Dew point21°

Sun, 1860° / 34°

60 °

Centralia, Sunday, 18 October

Clear. High 60°, low 34°.

Pressure30.36 inHg

Wind7.7 mph S

Humidity25%

Visibility—

Dew point18°

Mon, 1968° / 42°

68 °

Centralia, Monday, 19 October

Overcast. High 68°, low 42°.

Pressure30.27 inHg

Wind10.2 mph SW

Humidity19%

Visibility—

Dew point19°

Tue, 2074° / 46°

74 °

Centralia, Tuesday, 20 October

Clear. High 74°, low 46°.

Pressure30.33 inHg

Wind8.3 mph SE

Humidity21%

Visibility—

Dew point26°

Wed, 2177° / 53°

77 °

Centralia, Wednesday, 21 October

Overcast. High 77°, low 53°.

Pressure30.27 inHg

Wind12 mph S

Humidity24%

Visibility—

Dew point33°

Thu, 2277° / 52°

0.01

77 °

Centralia, Thursday, 22 October

Light rain. High 77°, low 52°.

Pressure30.03 inHg

Wind15.5 mph SW

Humidity32%

Visibility—

Dew point41°

Fri, 2364° / 45°

0.03

64 °

Centralia, Friday, 23 October

Light rain. High 64°, low 45°.

Pressure30.09 inHg

Wind17.5 mph NW

Humidity38%

Visibility—

Dew point32°

Sat, 2452° / 36°

52 °

Centralia, Saturday, 24 October

Clear. High 52°, low 36°.

Pressure30.21 inHg

Wind14.3 mph NW

Humidity37%

Visibility—

Dew point24°

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 Centralia, 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 Centralia, 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.