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As of 12:37 CDT

Weather in Harrisburg, IL

87°Current weather

Harrisburg, Sunday, 9 August, 12:37

Clear. Feels like 98°. High 90°, low 71°.

Pressure30.03 inHg
Wind1 mph SW
Humidity71%
Visibility6.2 mi
Dew point76°

10-day forecast for Harrisburg, IL: 68° to 106°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

106°
Best day: Sunday, August 16
94° · 0.12 in
Worst day: Thursday, August 13

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1096° / 74°0Clear
MorningClear79°feels 79°
AfternoonClear95°feels 101°
EveningClear84°feels 91°
OvernightClear77°feels 78°
96 °Clear

Harrisburg, Monday, 10 August

Clear. High 96°, low 74°.

Pressure30.03 inHg
Wind13.7 mph SW
Humidity48%
Visibility6.2 mi
Dew point70°
Tue, 1198° / 77°0Overcast
MorningPartly cloudy80°feels 83°
AfternoonClear98°feels 103°
EveningClear87°feels 91°
OvernightClear80°feels 80°
98 °Overcast

Harrisburg, Tuesday, 11 August

Overcast. High 98°, low 77°.

Pressure29.97 inHg
Wind11.1 mph SW
Humidity42%
Visibility6.2 mi
Dew point68°
Wed, 1297° / 74°0.06Rain
MorningLight rain76°feels 77°
AfternoonOvercast99°feels 104°
EveningPartly cloudy80°feels 80°
OvernightPartly cloudy82°feels 85°
97 °Rain

Harrisburg, Wednesday, 12 August

Rain. High 97°, low 74°.

Pressure29.85 inHg
Wind11.9 mph W
Humidity46%
Visibility6.2 mi
Dew point69°
Thu, 1394° / 72°0.12Light rain
MorningLight rain74°feels 75°
AfternoonLight rain88°feels 94°
EveningLight rain86°feels 94°
OvernightPartly cloudy74°feels 75°
94 °Light rain

Harrisburg, Thursday, 13 August

Light rain. High 94°, low 72°.

Pressure29.94 inHg
Wind12.3 mph SE
Humidity61%
Visibility6.2 mi
Dew point70°
Fri, 1499° / 75°0Overcast
MorningOvercast80°feels 82°
AfternoonOvercast89°feels 94°
EveningOvercast85°feels 93°
OvernightOvercast78°feels 79°
99 °Overcast

Harrisburg, Friday, 14 August

Overcast. High 99°, low 75°.

Pressure29.97 inHg
Wind13.7 mph NE
Humidity53%
Visibility—
Dew point68°
Sat, 1599° / 72°0.1Light rain
MorningLight rain78°feels 82°
AfternoonLight rain93°feels 101°
EveningLight rain88°feels 96°
OvernightLight rain78°feels 78°
99 °Light rain

Harrisburg, Saturday, 15 August

Light rain. High 99°, low 72°.

Pressure30.09 inHg
Wind9.6 mph E
Humidity49%
Visibility—
Dew point69°
Sun, 16106° / 78°0Light rain
MorningLight rain86°feels 87°
AfternoonLight rain103°feels 105°
EveningLight rain86°feels 94°
OvernightLight rain79°feels 79°
106 °Light rain

Harrisburg, Sunday, 16 August

Light rain. High 106°, low 78°.

Pressure29.97 inHg
Wind14.4 mph NW
Humidity21%
Visibility—
Dew point55°
Mon, 1787° / 68°0.03Light rain
MorningLight rain73°feels 74°
AfternoonLight rain85°feels 84°
EveningLight rain78°feels 78°
OvernightLight rain70°feels 70°
87 °Light rain

Harrisburg, Monday, 17 August

Light rain. High 87°, low 68°.

Pressure30.03 inHg
Wind9.8 mph N
Humidity41%
Visibility—
Dew point57°
Tue, 1896° / 68°0.06Light rain
MorningLight rain73°feels 74°
AfternoonLight rain86°feels 88°
EveningLight rain89°feels 95°
OvernightLight rain81°feels 85°
96 °Light rain

Harrisburg, Tuesday, 18 August

Light rain. High 96°, low 68°.

Pressure29.88 inHg
Wind13 mph S
Humidity50%
Visibility—
Dew point62°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Harrisburg, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.