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As of 19:08 CDT

Weather in Percy, IL

85°Current weather

Percy, Saturday, 8 August, 19:08

Clear. Feels like 95°. High 89°, low 71°.

Pressure30.00 inHg
Wind6 mph S
Humidity72%
Visibility6.2 mi
Dew point75°
Sun, 0993° / 72°0Partly cloudy
93 °Partly cloudy

Percy, Sunday, 9 August

Partly cloudy. High 93°, low 72°.

Pressure30.00 inHg
Wind12.3 mph S
Humidity50%
Visibility6.2 mi
Dew point69°
Mon, 10100° / 75°0Clear
100 °Clear

Percy, Monday, 10 August

Clear. High 100°, low 75°.

Pressure29.97 inHg
Wind12.3 mph SW
Humidity42%
Visibility6.2 mi
Dew point69°
Tue, 11103° / 77°0Mostly clear
103 °Mostly clear

Percy, Tuesday, 11 August

Mostly clear. High 103°, low 77°.

Pressure29.91 inHg
Wind11.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Wed, 1290° / 77°0Light rain
90 °Light rain

Percy, Wednesday, 12 August

Light rain. High 90°, low 77°.

Pressure29.85 inHg
Wind17.8 mph W
Humidity35%
Visibility6.2 mi
Dew point64°
Thu, 1377° / 71°0.29Light rain
77 °Light rain

Percy, Thursday, 13 August

Light rain. High 77°, low 71°.

Pressure29.85 inHg
Wind7.6 mph W
Humidity94%
Visibility—
Dew point72°
Fri, 1480° / 64°0.04Light rain
80 °Light rain

Percy, Friday, 14 August

Light rain. High 80°, low 64°.

Pressure30.12 inHg
Wind11.2 mph NE
Humidity51%
Visibility—
Dew point58°
Sat, 1582° / 57°0Overcast
82 °Overcast

Percy, Saturday, 15 August

Overcast. High 82°, low 57°.

Pressure30.27 inHg
Wind8.9 mph NE
Humidity40%
Visibility—
Dew point50°
Sun, 1681° / 61°0.01Light rain
81 °Light rain

Percy, Sunday, 16 August

Light rain. High 81°, low 61°.

Pressure30.18 inHg
Wind9.5 mph S
Humidity61%
Visibility—
Dew point60°
Mon, 1797° / 71°0.3Rain
97 °Rain

Percy, Monday, 17 August

Rain. High 97°, low 71°.

Pressure29.94 inHg
Wind17.3 mph S
Humidity49%
Visibility—
Dew point68°
Tue, 1891° / 73°0Overcast
91 °Overcast

Percy, Tuesday, 18 August

Overcast. High 91°, low 73°.

Pressure29.97 inHg
Wind10.2 mph N
Humidity53%
Visibility—
Dew point69°
Wed, 1993° / 73°0Mostly clear
93 °Mostly clear

Percy, Wednesday, 19 August

Mostly clear. High 93°, low 73°.

Pressure29.88 inHg
Wind7.7 mph S
Humidity49%
Visibility—
Dew point68°
Thu, 2090° / 74°0.08Light rain
90 °Light rain

Percy, Thursday, 20 August

Light rain. High 90°, low 74°.

Pressure29.85 inHg
Wind11.9 mph NW
Humidity52%
Visibility—
Dew point68°
Fri, 2183° / 71°0.06Light rain
83 °Light rain

Percy, Friday, 21 August

Light rain. High 83°, low 71°.

Pressure29.88 inHg
Wind9.8 mph NE
Humidity74%
Visibility—
Dew point71°
Sat, 2286° / 66°0Overcast
86 °Overcast

Percy, Saturday, 22 August

Overcast. High 86°, low 66°.

Pressure29.91 inHg
Wind7.7 mph NE
Humidity44%
Visibility—
Dew point59°
Sun, 2376° / 63°0Overcast
76 °Overcast

Percy, Sunday, 23 August

Overcast. High 76°, low 63°.

Pressure30.09 inHg
Wind11.2 mph NE
Humidity58%
Visibility—
Dew point57°

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 Percy, 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 Percy, 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.