As of 02:28 CDT

Weather in Sidell, IL

50°

Sidell, Thursday, 8 October, 02:28

Clear. Feels like 48°. High 79°, low 50°.

Pressure29.97 inHg

Wind5 mph NW

Humidity75%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Fri, 0983° / 49°

83 °

Sidell, Friday, 9 October

Mostly clear. High 83°, low 49°.

Pressure30.15 inHg

Wind10.1 mph S

Humidity32%

Visibility6.2 mi

Dew point47°

Sat, 1083° / 59°

83 °

Sidell, Saturday, 10 October

Overcast. High 83°, low 59°.

Pressure30.15 inHg

Wind8.1 mph S

Humidity40%

Visibility6.2 mi

Dew point55°

Sun, 1170° / 61°

0.02

70 °

Sidell, Sunday, 11 October

Light rain. High 70°, low 61°.

Pressure29.94 inHg

Wind6.4 mph E

Humidity69%

Visibility6.2 mi

Dew point56°

Mon, 1286° / 57°

86 °

Sidell, Monday, 12 October

Clear. High 86°, low 57°.

Pressure29.88 inHg

Wind14 mph SW

Humidity37%

Visibility—

Dew point51°

Tue, 1374° / 51°

74 °

Sidell, Tuesday, 13 October

Partly cloudy. High 74°, low 51°.

Pressure29.97 inHg

Wind14.6 mph SW

Humidity47%

Visibility—

Dew point46°

Wed, 1465° / 42°

65 °

Sidell, Wednesday, 14 October

Partly cloudy. High 65°, low 42°.

Pressure30.09 inHg

Wind10.2 mph S

Humidity31%

Visibility—

Dew point31°

Thu, 1593° / 60°

93 °

Sidell, Thursday, 15 October

Clear. High 93°, low 60°.

Pressure29.85 inHg

Wind20.1 mph S

Humidity40%

Visibility—

Dew point60°

Fri, 1687° / 69°

0.24

87 °

Sidell, Friday, 16 October

Rain. High 87°, low 69°.

Pressure29.94 inHg

Wind20.8 mph SW

Humidity46%

Visibility—

Dew point62°

Sat, 1760° / 50°

0.2

60 °

Sidell, Saturday, 17 October

Rain. High 60°, low 50°.

Pressure30.18 inHg

Wind14.4 mph W

Humidity43%

Visibility—

Dew point35°

Sun, 1858° / 43°

58 °

Sidell, Sunday, 18 October

Clear. High 58°, low 43°.

Pressure30.27 inHg

Wind9.4 mph NW

Humidity43%

Visibility—

Dew point33°

Mon, 1961° / 41°

61 °

Sidell, Monday, 19 October

Mostly clear. High 61°, low 41°.

Pressure30.30 inHg

Wind4.7 mph NE

Humidity38%

Visibility—

Dew point32°

Tue, 2070° / 46°

70 °

Sidell, Tuesday, 20 October

Overcast. High 70°, low 46°.

Pressure30.12 inHg

Wind11.9 mph NE

Humidity32%

Visibility—

Dew point34°

Wed, 2159° / 42°

59 °

Sidell, Wednesday, 21 October

Overcast. High 59°, low 42°.

Pressure30.21 inHg

Wind10.8 mph NE

Humidity37%

Visibility—

Dew point29°

Thu, 2263° / 46°

0.09

63 °

Sidell, Thursday, 22 October

Light rain. High 63°, low 46°.

Pressure29.80 inHg

Wind15.1 mph S

Humidity46%

Visibility—

Dew point40°

Fri, 2357° / 52°

0.1

57 °

Sidell, Friday, 23 October

Light rain. High 57°, low 52°.

Pressure29.77 inHg

Wind13.3 mph SW

Humidity93%

Visibility—

Dew point50°

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.