As of 10:08 CDT

Weather in Sidell, IL

66°

Sidell, Thursday, 8 October, 10:08

Clear. Feels like 65°. High 78°, low 50°.

Pressure30.09 inHg

Wind0.6 mph N

Humidity56%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Fri, 0983° / 51°

83 °

Sidell, Friday, 9 October

Clear. High 83°, low 51°.

Pressure30.15 inHg

Wind9.8 mph S

Humidity32%

Visibility6.2 mi

Dew point47°

Sat, 1083° / 58°

83 °

Sidell, Saturday, 10 October

Overcast. High 83°, low 58°.

Pressure30.12 inHg

Wind8.3 mph SE

Humidity36%

Visibility6.2 mi

Dew point49°

Sun, 1173° / 61°

0.01

73 °

Sidell, Sunday, 11 October

Light rain. High 73°, low 61°.

Pressure29.91 inHg

Wind4.7 mph NE

Humidity65%

Visibility6.2 mi

Dew point56°

Mon, 1287° / 57°

87 °

Sidell, Monday, 12 October

Clear. High 87°, low 57°.

Pressure29.88 inHg

Wind11.9 mph SW

Humidity37%

Visibility—

Dew point53°

Tue, 1389° / 67°

89 °

Sidell, Tuesday, 13 October

Clear. High 89°, low 67°.

Pressure29.85 inHg

Wind10.9 mph SW

Humidity36%

Visibility—

Dew point55°

Wed, 1476° / 56°

0.02

76 °

Sidell, Wednesday, 14 October

Light rain. High 76°, low 56°.

Pressure30.00 inHg

Wind14.1 mph SE

Humidity53%

Visibility—

Dew point49°

Thu, 1594° / 71°

0.01

94 °

Sidell, Thursday, 15 October

Light rain. High 94°, low 71°.

Pressure29.91 inHg

Wind19.4 mph SW

Humidity36%

Visibility—

Dew point60°

Fri, 1679° / 57°

0.19

79 °

Sidell, Friday, 16 October

Light rain. High 79°, low 57°.

Pressure30.21 inHg

Wind14.3 mph N

Humidity60%

Visibility—

Dew point53°

Sat, 1759° / 47°

59 °

Sidell, Saturday, 17 October

Mostly clear. High 59°, low 47°.

Pressure30.56 inHg

Wind17 mph NE

Humidity41%

Visibility—

Dew point34°

Sun, 1863° / 40°

63 °

Sidell, Sunday, 18 October

Overcast. High 63°, low 40°.

Pressure30.45 inHg

Wind10.6 mph E

Humidity26%

Visibility—

Dew point23°

Mon, 1966° / 49°

0.02

66 °

Sidell, Monday, 19 October

Light rain. High 66°, low 49°.

Pressure30.24 inHg

Wind15.6 mph SW

Humidity59%

Visibility—

Dew point49°

Tue, 2078° / 60°

0.02

78 °

Sidell, Tuesday, 20 October

Light rain. High 78°, low 60°.

Pressure30.15 inHg

Wind13.3 mph SW

Humidity57%

Visibility—

Dew point57°

Wed, 2176° / 57°

76 °

Sidell, Wednesday, 21 October

Clear. High 76°, low 57°.

Pressure30.06 inHg

Wind9.3 mph W

Humidity47%

Visibility—

Dew point51°

Thu, 2274° / 53°

0.11

74 °

Sidell, Thursday, 22 October

Light rain. High 74°, low 53°.

Pressure29.91 inHg

Wind18.8 mph SW

Humidity52%

Visibility—

Dew point53°

Fri, 2361° / 44°

61 °

Sidell, Friday, 23 October

Clear. High 61°, low 44°.

Pressure30.18 inHg

Wind10.8 mph W

Humidity38%

Visibility—

Dew point31°

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 Sidell, 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 Sidell, 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.