As of 18:48 CDT

Weather in Harrisburg, IL

69°Current weather

Harrisburg, Thursday, 29 October, 18:48

Clear. Feels like 68°. High 80°, low 53°.

Pressure30.15 inHg
Wind0 mph N
Humidity58%
Visibility6.2 mi
Dew point54°
Fri, 3079° / 52°0Mostly clear
79 °Mostly clear

Harrisburg, Friday, 30 October

Mostly clear. High 79°, low 52°.

Pressure30.24 inHg
Wind3.4 mph E
Humidity51%
Visibility6.2 mi
Dew point55°
Sat, 3169° / 55°0.02Light rain
69 °Light rain

Harrisburg, Saturday, 31 October

Light rain. High 69°, low 55°.

Pressure30.27 inHg
Wind5.1 mph SE
Humidity66%
Visibility6.2 mi
Dew point55°
Sun, 0163° / 58°0.06Light rain
63 °Light rain

Harrisburg, Sunday, 1 November

Light rain. High 63°, low 58°.

Pressure30.30 inHg
Wind8.8 mph SE
Humidity89%
Visibility3.4 mi
Dew point58°
Mon, 0272° / 58°0Overcast
72 °Overcast

Harrisburg, Monday, 2 November

Overcast. High 72°, low 58°.

Pressure30.15 inHg
Wind9.1 mph S
Humidity80%
Visibility6.2 mi
Dew point59°
Tue, 0376° / 64°0Mostly clear
76 °Mostly clear

Harrisburg, Tuesday, 3 November

Mostly clear. High 76°, low 64°.

Pressure29.91 inHg
Wind16.6 mph S
Humidity59%
Visibility—
Dew point59°
Wed, 0467° / 62°0.45Rain
67 °Rain

Harrisburg, Wednesday, 4 November

Rain. High 67°, low 62°.

Pressure29.74 inHg
Wind14.7 mph SE
Humidity98%
Visibility—
Dew point61°
Thu, 0565° / 53°0.95Heavy rain
65 °Heavy rain

Harrisburg, Thursday, 5 November

Heavy rain. High 65°, low 53°.

Pressure29.68 inHg
Wind14.3 mph NW
Humidity64%
Visibility—
Dew point47°
Fri, 0659° / 45°0Partly cloudy
59 °Partly cloudy

Harrisburg, Friday, 6 November

Partly cloudy. High 59°, low 45°.

Pressure30.06 inHg
Wind8.5 mph N
Humidity37%
Visibility—
Dew point31°
Sat, 0761° / 42°0Overcast
61 °Overcast

Harrisburg, Saturday, 7 November

Overcast. High 61°, low 42°.

Pressure30.18 inHg
Wind6.8 mph E
Humidity37%
Visibility—
Dew point31°
Sun, 0867° / 48°0.12Light rain
67 °Light rain

Harrisburg, Sunday, 8 November

Light rain. High 67°, low 48°.

Pressure29.97 inHg
Wind14.1 mph S
Humidity60%
Visibility—
Dew point50°
Mon, 0962° / 55°0.17Light rain
62 °Light rain

Harrisburg, Monday, 9 November

Light rain. High 62°, low 55°.

Pressure29.77 inHg
Wind15.5 mph S
Humidity87%
Visibility—
Dew point55°
Tue, 1064° / 53°0Overcast
64 °Overcast

Harrisburg, Tuesday, 10 November

Overcast. High 64°, low 53°.

Pressure30.00 inHg
Wind10.3 mph NW
Humidity61%
Visibility—
Dew point48°
Wed, 1168° / 51°0Overcast
68 °Overcast

Harrisburg, Wednesday, 11 November

Overcast. High 68°, low 51°.

Pressure29.85 inHg
Wind15 mph S
Humidity44%
Visibility—
Dew point43°
Thu, 1272° / 56°0.22Rain
72 °Rain

Harrisburg, Thursday, 12 November

Rain. High 72°, low 56°.

Pressure29.68 inHg
Wind16.2 mph S
Humidity58%
Visibility—
Dew point52°
Fri, 1367° / 49°0Mostly clear
67 °Mostly clear

Harrisburg, Friday, 13 November

Mostly clear. High 67°, low 49°.

Pressure30.06 inHg
Wind11.1 mph SE
Humidity36%
Visibility—
Dew point36°

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.