As of 15:34 CDT

Weather in Henderson, IL

88°

Henderson, Monday, 12 October, 15:34

Overcast. Feels like 91°. High 88°, low 64°.

Pressure29.77 inHg

Wind12.7 mph S

Humidity50%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

Tue, 1383° / 65°

0.08

83 °

Henderson, Tuesday, 13 October

Rain. High 83°, low 65°.

Pressure29.88 inHg

Wind3.9 mph NW

Humidity69%

Visibility6.2 mi

Dew point63°

Wed, 1473° / 61°

0.19

73 °

Henderson, Wednesday, 14 October

Rain. High 73°, low 61°.

Pressure30.06 inHg

Wind8.6 mph NE

Humidity68%

Visibility6.2 mi

Dew point59°

Thu, 1565° / 58°

1.07

65 °

Henderson, Thursday, 15 October

Heavy rain. High 65°, low 58°.

Pressure30.00 inHg

Wind7 mph E

Humidity93%

Visibility1.2 mi

Dew point60°

Fri, 1657° / 47°

0.01

57 °

Henderson, Friday, 16 October

Light rain. High 57°, low 47°.

Pressure30.36 inHg

Wind18.6 mph NW

Humidity51%

Visibility6.2 mi

Dew point36°

Sat, 1759° / 39°

59 °

Henderson, Saturday, 17 October

Clear. High 59°, low 39°.

Pressure30.47 inHg

Wind10.3 mph SW

Humidity40%

Visibility—

Dew point31°

Sun, 1862° / 43°

62 °

Henderson, Sunday, 18 October

Clear. High 62°, low 43°.

Pressure30.27 inHg

Wind14.5 mph S

Humidity44%

Visibility—

Dew point36°

Mon, 1964° / 45°

0.01

64 °

Henderson, Monday, 19 October

Light rain. High 64°, low 45°.

Pressure30.30 inHg

Wind8.7 mph S

Humidity47%

Visibility—

Dew point40°

Tue, 2070° / 53°

70 °

Henderson, Tuesday, 20 October

Mostly clear. High 70°, low 53°.

Pressure30.24 inHg

Wind8.9 mph S

Humidity70%

Visibility—

Dew point55°

Wed, 2174° / 57°

74 °

Henderson, Wednesday, 21 October

Clear. High 74°, low 57°.

Pressure30.15 inHg

Wind12.5 mph S

Humidity60%

Visibility—

Dew point56°

Thu, 2272° / 62°

0.01

72 °

Henderson, Thursday, 22 October

Light rain. High 72°, low 62°.

Pressure30.06 inHg

Wind14.5 mph S

Humidity65%

Visibility—

Dew point55°

Fri, 2373° / 63°

0.04

73 °

Henderson, Friday, 23 October

Light rain. High 73°, low 63°.

Pressure29.88 inHg

Wind15.7 mph S

Humidity55%

Visibility—

Dew point53°

Sat, 2465° / 46°

0.06

65 °

Henderson, Saturday, 24 October

Light rain. High 65°, low 46°.

Pressure29.83 inHg

Wind17.8 mph W

Humidity64%

Visibility—

Dew point40°

Sun, 2553° / 44°

53 °

Henderson, Sunday, 25 October

Overcast. High 53°, low 44°.

Pressure30.09 inHg

Wind13 mph NW

Humidity58%

Visibility—

Dew point36°

Mon, 2658° / 41°

58 °

Henderson, Monday, 26 October

Clear. High 58°, low 41°.

Pressure30.18 inHg

Wind6.9 mph E

Humidity54%

Visibility—

Dew point38°

Tue, 2762° / 45°

62 °

Henderson, Tuesday, 27 October

Overcast. High 62°, low 45°.

Pressure29.91 inHg

Wind8.8 mph S

Humidity54%

Visibility—

Dew point41°

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 Henderson, 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 Henderson, 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.