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As of 08:22 CST

Weather in Harrisburg, IL

64°Current weather

Harrisburg, Wednesday, 4 November, 08:22

Overcast. Feels like 64°. High 64°, low 53°.

Pressure29.80 inHg
Wind5.7 mph W
Humidity95%
Visibility6.2 mi
Dew point62°
Thu, 0566° / 48°0Clear
66 °Clear

Harrisburg, Thursday, 5 November

Clear. High 66°, low 48°.

Pressure29.91 inHg
Wind9.7 mph W
Humidity45%
Visibility6.2 mi
Dew point43°
Fri, 0657° / 44°0Overcast
57 °Overcast

Harrisburg, Friday, 6 November

Overcast. High 57°, low 44°.

Pressure30.09 inHg
Wind11.6 mph NW
Humidity71%
Visibility6.2 mi
Dew point48°
Sat, 0755° / 38°0Overcast
55 °Overcast

Harrisburg, Saturday, 7 November

Overcast. High 55°, low 38°.

Pressure30.27 inHg
Wind5 mph N
Humidity51%
Visibility6.2 mi
Dew point36°
Sun, 0859° / 37°0Clear
59 °Clear

Harrisburg, Sunday, 8 November

Clear. High 59°, low 37°.

Pressure30.24 inHg
Wind7.7 mph SW
Humidity49%
Visibility—
Dew point36°
Mon, 0965° / 42°0Clear
65 °Clear

Harrisburg, Monday, 9 November

Clear. High 65°, low 42°.

Pressure30.21 inHg
Wind4.9 mph W
Humidity62%
Visibility—
Dew point47°
Tue, 1065° / 46°0Clear
65 °Clear

Harrisburg, Tuesday, 10 November

Clear. High 65°, low 46°.

Pressure30.06 inHg
Wind9.1 mph NW
Humidity30%
Visibility—
Dew point30°
Wed, 1161° / 42°0Overcast
61 °Overcast

Harrisburg, Wednesday, 11 November

Overcast. High 61°, low 42°.

Pressure30.18 inHg
Wind6.5 mph N
Humidity35%
Visibility—
Dew point30°
Thu, 1260° / 43°0Overcast
60 °Overcast

Harrisburg, Thursday, 12 November

Overcast. High 60°, low 43°.

Pressure30.18 inHg
Wind6.2 mph N
Humidity41%
Visibility—
Dew point33°
Fri, 1359° / 40°0Clear
59 °Clear

Harrisburg, Friday, 13 November

Clear. High 59°, low 40°.

Pressure30.18 inHg
Wind7.1 mph NW
Humidity39%
Visibility—
Dew point30°
Sat, 1463° / 41°0Clear
63 °Clear

Harrisburg, Saturday, 14 November

Clear. High 63°, low 41°.

Pressure30.21 inHg
Wind6 mph W
Humidity34%
Visibility—
Dew point30°
Sun, 1564° / 45°0Overcast
64 °Overcast

Harrisburg, Sunday, 15 November

Overcast. High 64°, low 45°.

Pressure30.21 inHg
Wind5.7 mph SW
Humidity35%
Visibility—
Dew point33°
Mon, 1666° / 50°0Overcast
66 °Overcast

Harrisburg, Monday, 16 November

Overcast. High 66°, low 50°.

Pressure30.18 inHg
Wind4.1 mph E
Humidity36%
Visibility—
Dew point36°
Tue, 1767° / 46°0Clear
67 °Clear

Harrisburg, Tuesday, 17 November

Clear. High 67°, low 46°.

Pressure30.24 inHg
Wind6.9 mph SE
Humidity33%
Visibility—
Dew point33°
Wed, 1868° / 49°0.04Light rain
68 °Light rain

Harrisburg, Wednesday, 18 November

Light rain. High 68°, low 49°.

Pressure30.09 inHg
Wind14.9 mph S
Humidity44%
Visibility—
Dew point43°
Thu, 1960° / 52°0.92Heavy rain
60 °Heavy rain

Harrisburg, Thursday, 19 November

Heavy rain. High 60°, low 52°.

Pressure29.85 inHg
Wind15.4 mph S
Humidity81%
Visibility—
Dew point54°

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 Harrisburg, 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 Harrisburg, 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.