As of 08:16 CST

Weather in Harrisburg, IL

40°

Harrisburg, Friday, 13 November, 08:16

Overcast. Feels like 33°. High 46°, low 37°.

Pressure30.03 inHg

Wind11.5 mph NW

Humidity67%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Sat, 1449° / 33°

49 °

Harrisburg, Saturday, 14 November

Clear. High 49°, low 33°.

Pressure30.30 inHg

Wind4.7 mph NW

Humidity51%

Visibility6.2 mi

Dew point25°

Sun, 1552° / 31°

52 °

Harrisburg, Sunday, 15 November

Overcast. High 52°, low 31°.

Pressure30.45 inHg

Wind1.5 mph NE

Humidity47%

Visibility6.2 mi

Dew point29°

Mon, 1654° / 33°

54 °

Harrisburg, Monday, 16 November

Clear. High 54°, low 33°.

Pressure30.53 inHg

Wind3.3 mph E

Humidity50%

Visibility6.2 mi

Dew point35°

Tue, 1756° / 33°

56 °

Harrisburg, Tuesday, 17 November

Clear. High 56°, low 33°.

Pressure30.50 inHg

Wind4.1 mph SE

Humidity49%

Visibility—

Dew point33°

Wed, 1861° / 37°

61 °

Harrisburg, Wednesday, 18 November

Clear. High 61°, low 37°.

Pressure30.39 inHg

Wind8 mph S

Humidity44%

Visibility—

Dew point35°

Thu, 1967° / 46°

67 °

Harrisburg, Thursday, 19 November

Overcast. High 67°, low 46°.

Pressure30.30 inHg

Wind11.1 mph SW

Humidity49%

Visibility—

Dew point42°

Fri, 2068° / 51°

68 °

Harrisburg, Friday, 20 November

Partly cloudy. High 68°, low 51°.

Pressure30.33 inHg

Wind6.7 mph E

Humidity55%

Visibility—

Dew point49°

Sat, 2170° / 52°

70 °

Harrisburg, Saturday, 21 November

Clear. High 70°, low 52°.

Pressure29.97 inHg

Wind20.4 mph S

Humidity30%

Visibility—

Dew point35°

Sun, 2264° / 45°

0.15

64 °

Harrisburg, Sunday, 22 November

Rain. High 64°, low 45°.

Pressure30.06 inHg

Wind17.1 mph SW

Humidity45%

Visibility—

Dew point36°

Mon, 2353° / 39°

53 °

Harrisburg, Monday, 23 November

Partly cloudy. High 53°, low 39°.

Pressure30.12 inHg

Wind14 mph N

Humidity43%

Visibility—

Dew point30°

Tue, 2433° / 22°

0.01

33 °

Harrisburg, Tuesday, 24 November

Light snow. High 33°, low 22°.

Pressure30.33 inHg

Wind17.5 mph NW

Humidity28%

Visibility—

Dew point0°

Wed, 2537° / 18°

37 °

Harrisburg, Wednesday, 25 November

Clear. High 37°, low 18°.

Pressure30.21 inHg

Wind12.3 mph NW

Humidity22%

Visibility—

Dew point-2°

Thu, 2639° / 18°

39 °

Harrisburg, Thursday, 26 November

Clear. High 39°, low 18°.

Pressure30.27 inHg

Wind9.5 mph SW

Humidity27%

Visibility—

Dew point3°

Fri, 2750° / 29°

50 °

Harrisburg, Friday, 27 November

Clear. High 50°, low 29°.

Pressure30.00 inHg

Wind13.8 mph SW

Humidity34%

Visibility—

Dew point18°

Sat, 2851° / 29°

51 °

Harrisburg, Saturday, 28 November

Clear. High 51°, low 29°.

Pressure30.12 inHg

Wind4.4 mph S

Humidity37%

Visibility—

Dew point21°

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.