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As of 12:53 CST

Weather in Harristown, IL

68°Current weather

Harristown, Tuesday, 3 November, 12:53

Overcast. Feels like 68°. High 68°, low 63°.

Pressure29.83 inHg
Wind18.4 mph S
Humidity77%
Visibility6.2 mi
Dew point61°
Wed, 0462° / 56°0.34Rain
62 °Rain

Harristown, Wednesday, 4 November

Rain. High 62°, low 56°.

Pressure29.74 inHg
Wind14.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point50°
Thu, 0561° / 49°0Mostly clear
61 °Mostly clear

Harristown, Thursday, 5 November

Mostly clear. High 61°, low 49°.

Pressure29.83 inHg
Wind14.2 mph W
Humidity52%
Visibility6.2 mi
Dew point43°
Fri, 0653° / 48°0.01Light rain
53 °Light rain

Harristown, Friday, 6 November

Light rain. High 53°, low 48°.

Pressure30.09 inHg
Wind9.5 mph N
Humidity72%
Visibility6.2 mi
Dew point42°
Sat, 0752° / 39°0Overcast
52 °Overcast

Harristown, Saturday, 7 November

Overcast. High 52°, low 39°.

Pressure30.21 inHg
Wind4.5 mph NW
Humidity53%
Visibility6.2 mi
Dew point34°
Sun, 0862° / 39°0Clear
62 °Clear

Harristown, Sunday, 8 November

Clear. High 62°, low 39°.

Pressure30.12 inHg
Wind8.4 mph W
Humidity58%
Visibility—
Dew point42°
Mon, 0968° / 46°0Partly cloudy
68 °Partly cloudy

Harristown, Monday, 9 November

Partly cloudy. High 68°, low 46°.

Pressure30.06 inHg
Wind12.1 mph SW
Humidity42%
Visibility—
Dew point40°
Tue, 1065° / 54°0Overcast
65 °Overcast

Harristown, Tuesday, 10 November

Overcast. High 65°, low 54°.

Pressure30.03 inHg
Wind12.3 mph SW
Humidity53%
Visibility—
Dew point46°
Wed, 1160° / 47°0Overcast
60 °Overcast

Harristown, Wednesday, 11 November

Overcast. High 60°, low 47°.

Pressure30.15 inHg
Wind8.8 mph NE
Humidity29%
Visibility—
Dew point25°
Thu, 1253° / 39°0Clear
53 °Clear

Harristown, Thursday, 12 November

Clear. High 53°, low 39°.

Pressure30.21 inHg
Wind10.2 mph N
Humidity42%
Visibility—
Dew point29°
Fri, 1352° / 35°0Clear
52 °Clear

Harristown, Friday, 13 November

Clear. High 52°, low 35°.

Pressure30.24 inHg
Wind6.6 mph E
Humidity41%
Visibility—
Dew point26°
Sat, 1455° / 36°0Clear
55 °Clear

Harristown, Saturday, 14 November

Clear. High 55°, low 36°.

Pressure30.27 inHg
Wind5.1 mph SE
Humidity32%
Visibility—
Dew point22°
Sun, 1557° / 37°0Clear
57 °Clear

Harristown, Sunday, 15 November

Clear. High 57°, low 37°.

Pressure30.09 inHg
Wind7.8 mph SE
Humidity31%
Visibility—
Dew point23°
Mon, 1660° / 39°0.06Light rain
60 °Light rain

Harristown, Monday, 16 November

Light rain. High 60°, low 39°.

Pressure29.80 inHg
Wind14 mph SE
Humidity44%
Visibility—
Dew point32°
Tue, 1755° / 49°0.03Light rain
55 °Light rain

Harristown, Tuesday, 17 November

Light rain. High 55°, low 49°.

Pressure29.65 inHg
Wind11.7 mph SE
Humidity83%
Visibility—
Dew point46°
Wed, 1859° / 45°0.09Light rain
59 °Light rain

Harristown, Wednesday, 18 November

Light rain. High 59°, low 45°.

Pressure29.94 inHg
Wind12 mph SE
Humidity55%
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 Harristown, 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 Harristown, 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.