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As of 21:17 CDT

Weather in Round Knob, IL

74°Current weather

Round Knob, Saturday, 8 August, 21:17

Clear. Feels like 76°. High 88°, low 73°.

Pressure30.09 inHg
Wind4.6 mph S
Humidity88%
Visibility6.2 mi
Dew point71°
Sun, 0992° / 73°0Clear
92 °Clear

Round Knob, Sunday, 9 August

Clear. High 92°, low 73°.

Pressure30.06 inHg
Wind9.9 mph SW
Humidity58%
Visibility6.2 mi
Dew point71°
Mon, 1094° / 73°0Mostly clear
94 °Mostly clear

Round Knob, Monday, 10 August

Mostly clear. High 94°, low 73°.

Pressure30.03 inHg
Wind11.7 mph SW
Humidity53%
Visibility6.2 mi
Dew point71°
Tue, 1197° / 75°0Partly cloudy
97 °Partly cloudy

Round Knob, Tuesday, 11 August

Partly cloudy. High 97°, low 75°.

Pressure29.94 inHg
Wind13.3 mph SW
Humidity46%
Visibility6.2 mi
Dew point70°
Wed, 1291° / 73°0.12Light rain
91 °Light rain

Round Knob, Wednesday, 12 August

Light rain. High 91°, low 73°.

Pressure29.88 inHg
Wind6 mph W
Humidity66%
Visibility6.2 mi
Dew point73°
Thu, 1386° / 71°0.24Rain
86 °Rain

Round Knob, Thursday, 13 August

Rain. High 86°, low 71°.

Pressure29.94 inHg
Wind11.3 mph E
Humidity93%
Visibility—
Dew point73°
Fri, 1489° / 70°1.45Heavy rain
89 °Heavy rain

Round Knob, Friday, 14 August

Heavy rain. High 89°, low 70°.

Pressure29.97 inHg
Wind11.9 mph E
Humidity64%
Visibility—
Dew point72°
Sat, 1576° / 67°0.16Light rain
76 °Light rain

Round Knob, Saturday, 15 August

Light rain. High 76°, low 67°.

Pressure30.21 inHg
Wind10 mph SE
Humidity88%
Visibility—
Dew point69°
Sun, 1693° / 69°0.01Light rain
93 °Light rain

Round Knob, Sunday, 16 August

Light rain. High 93°, low 69°.

Pressure30.03 inHg
Wind8.6 mph W
Humidity53%
Visibility—
Dew point69°
Mon, 1788° / 74°0.04Light rain
88 °Light rain

Round Knob, Monday, 17 August

Light rain. High 88°, low 74°.

Pressure30.03 inHg
Wind7.8 mph NE
Humidity77%
Visibility—
Dew point73°
Tue, 1892° / 72°0.22Rain
92 °Rain

Round Knob, Tuesday, 18 August

Rain. High 92°, low 72°.

Pressure29.97 inHg
Wind14.6 mph NW
Humidity60%
Visibility—
Dew point73°
Wed, 1990° / 70°0Overcast
90 °Overcast

Round Knob, Wednesday, 19 August

Overcast. High 90°, low 70°.

Pressure29.91 inHg
Wind7.6 mph NE
Humidity52%
Visibility—
Dew point67°
Thu, 2081° / 65°0Clear
81 °Clear

Round Knob, Thursday, 20 August

Clear. High 81°, low 65°.

Pressure29.97 inHg
Wind11.5 mph NE
Humidity44%
Visibility—
Dew point55°
Fri, 2177° / 62°0.12Light rain
77 °Light rain

Round Knob, Friday, 21 August

Light rain. High 77°, low 62°.

Pressure30.03 inHg
Wind9.1 mph E
Humidity61%
Visibility—
Dew point59°
Sat, 22100° / 64°0.29Rain
100 °Rain

Round Knob, Saturday, 22 August

Rain. High 100°, low 64°.

Pressure29.85 inHg
Wind12.5 mph S
Humidity51%
Visibility—
Dew point66°
Sun, 2390° / 71°0.07Light rain
90 °Light rain

Round Knob, Sunday, 23 August

Light rain. High 90°, low 71°.

Pressure29.97 inHg
Wind11.4 mph SW
Humidity53%
Visibility—
Dew point67°

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 Round Knob, 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 Round Knob, 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.