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As of 13:46 CDT

Weather in Harristown, IL

63°Current weather

Harristown, Friday, 30 October, 13:46

Overcast. Feels like 61°. High 65°, low 51°.

Pressure30.27 inHg
Wind12.7 mph E
Humidity51%
Visibility6.2 mi
Dew point44°
Sat, 3170° / 56°0Overcast
70 °Overcast

Harristown, Saturday, 31 October

Overcast. High 70°, low 56°.

Pressure30.30 inHg
Wind6.7 mph SE
Humidity44%
Visibility6.2 mi
Dew point44°
Sun, 0170° / 57°0Overcast
70 °Overcast

Harristown, Sunday, 1 November

Overcast. High 70°, low 57°.

Pressure30.30 inHg
Wind10.2 mph S
Humidity53%
Visibility6.2 mi
Dew point53°
Mon, 0269° / 57°0Overcast
69 °Overcast

Harristown, Monday, 2 November

Overcast. High 69°, low 57°.

Pressure30.12 inHg
Wind13.2 mph S
Humidity62%
Visibility6.2 mi
Dew point53°
Tue, 0372° / 63°0.26Rain
72 °Rain

Harristown, Tuesday, 3 November

Rain. High 72°, low 63°.

Pressure29.88 inHg
Wind17.4 mph S
Humidity70%
Visibility6.2 mi
Dew point60°
Wed, 0465° / 58°0.7Rain
65 °Rain

Harristown, Wednesday, 4 November

Rain. High 65°, low 58°.

Pressure29.65 inHg
Wind12 mph S
Humidity93%
Visibility—
Dew point62°
Thu, 0563° / 56°0Light rain
63 °Light rain

Harristown, Thursday, 5 November

Light rain. High 63°, low 56°.

Pressure29.71 inHg
Wind11.8 mph N
Humidity77%
Visibility—
Dew point55°
Fri, 0656° / 48°0Overcast
56 °Overcast

Harristown, Friday, 6 November

Overcast. High 56°, low 48°.

Pressure29.88 inHg
Wind11.2 mph N
Humidity63%
Visibility—
Dew point42°
Sat, 0757° / 47°0Partly cloudy
57 °Partly cloudy

Harristown, Saturday, 7 November

Partly cloudy. High 57°, low 47°.

Pressure30.09 inHg
Wind10.7 mph NE
Humidity48%
Visibility—
Dew point35°
Sun, 0853° / 41°0Overcast
53 °Overcast

Harristown, Sunday, 8 November

Overcast. High 53°, low 41°.

Pressure30.27 inHg
Wind14.8 mph E
Humidity35%
Visibility—
Dew point24°
Mon, 0947° / 43°0.07Light rain
47 °Light rain

Harristown, Monday, 9 November

Light rain. High 47°, low 43°.

Pressure30.09 inHg
Wind11.7 mph E
Humidity50%
Visibility—
Dew point29°
Tue, 1044° / 42°0.69Rain
44 °Rain

Harristown, Tuesday, 10 November

Rain. High 44°, low 42°.

Pressure29.85 inHg
Wind15.8 mph NE
Humidity88%
Visibility—
Dew point39°
Wed, 1151° / 38°0Overcast
51 °Overcast

Harristown, Wednesday, 11 November

Overcast. High 51°, low 38°.

Pressure30.00 inHg
Wind9.4 mph N
Humidity54%
Visibility—
Dew point33°
Thu, 1252° / 37°0Clear
52 °Clear

Harristown, Thursday, 12 November

Clear. High 52°, low 37°.

Pressure29.91 inHg
Wind10.1 mph SE
Humidity43%
Visibility—
Dew point28°
Fri, 1352° / 43°0.31Rain
52 °Rain

Harristown, Friday, 13 November

Rain. High 52°, low 43°.

Pressure29.65 inHg
Wind18.5 mph SE
Humidity82%
Visibility—
Dew point42°
Sat, 1450° / 41°0.21Light rain
50 °Light rain

Harristown, Saturday, 14 November

Light rain. High 50°, low 41°.

Pressure29.62 inHg
Wind11.6 mph W
Humidity85%
Visibility—
Dew point42°

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.