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As of 22:40 CDT

Weather in Percy, IL

59°Current weather

Percy, Thursday, 8 October, 22:40

Clear. Feels like 58°. High 85°, low 53°.

Pressure30.09 inHg
Wind3.4 mph SE
Humidity67%
Visibility6.2 mi
Dew point48°
Fri, 0987° / 54°0Clear
87 °Clear

Percy, Friday, 9 October

Clear. High 87°, low 54°.

Pressure30.12 inHg
Wind8.1 mph S
Humidity35%
Visibility6.2 mi
Dew point50°
Sat, 1079° / 58°0Light rain
79 °Light rain

Percy, Saturday, 10 October

Light rain. High 79°, low 58°.

Pressure30.06 inHg
Wind6.5 mph E
Humidity48%
Visibility6.2 mi
Dew point52°
Sun, 1182° / 61°0.02Light rain
82 °Light rain

Percy, Sunday, 11 October

Light rain. High 82°, low 61°.

Pressure29.94 inHg
Wind8.9 mph NW
Humidity55%
Visibility6.2 mi
Dew point57°
Mon, 1290° / 62°0Clear
90 °Clear

Percy, Monday, 12 October

Clear. High 90°, low 62°.

Pressure29.94 inHg
Wind9.8 mph SW
Humidity43%
Visibility6.2 mi
Dew point60°
Tue, 1392° / 69°0.24Rain
92 °Rain

Percy, Tuesday, 13 October

Rain. High 92°, low 69°.

Pressure29.85 inHg
Wind10.9 mph SW
Humidity48%
Visibility—
Dew point65°
Wed, 1487° / 71°0.18Light rain
87 °Light rain

Percy, Wednesday, 14 October

Light rain. High 87°, low 71°.

Pressure29.94 inHg
Wind8.1 mph S
Humidity67%
Visibility—
Dew point69°
Thu, 1593° / 77°0Clear
93 °Clear

Percy, Thursday, 15 October

Clear. High 93°, low 77°.

Pressure29.88 inHg
Wind19.8 mph SW
Humidity30%
Visibility—
Dew point55°
Fri, 1679° / 55°0.01Light rain
79 °Light rain

Percy, Friday, 16 October

Light rain. High 79°, low 55°.

Pressure30.12 inHg
Wind16.2 mph N
Humidity66%
Visibility—
Dew point58°
Sat, 1760° / 46°0Overcast
60 °Overcast

Percy, Saturday, 17 October

Overcast. High 60°, low 46°.

Pressure30.42 inHg
Wind15 mph N
Humidity26%
Visibility—
Dew point23°
Sun, 1863° / 39°0Overcast
63 °Overcast

Percy, Sunday, 18 October

Overcast. High 63°, low 39°.

Pressure30.42 inHg
Wind8.4 mph NE
Humidity28%
Visibility—
Dew point25°
Mon, 1964° / 44°0Overcast
64 °Overcast

Percy, Monday, 19 October

Overcast. High 64°, low 44°.

Pressure30.42 inHg
Wind9 mph NE
Humidity27%
Visibility—
Dew point27°
Tue, 2057° / 51°0.11Light rain
57 °Light rain

Percy, Tuesday, 20 October

Light rain. High 57°, low 51°.

Pressure30.33 inHg
Wind4.6 mph E
Humidity83%
Visibility—
Dew point46°
Wed, 2170° / 54°0.15Light rain
70 °Light rain

Percy, Wednesday, 21 October

Light rain. High 70°, low 54°.

Pressure30.21 inHg
Wind5.3 mph SW
Humidity83%
Visibility—
Dew point56°
Thu, 2269° / 60°0.57Rain
69 °Rain

Percy, Thursday, 22 October

Rain. High 69°, low 60°.

Pressure30.15 inHg
Wind5.2 mph SW
Humidity78%
Visibility—
Dew point59°
Fri, 2366° / 51°0Partly cloudy
66 °Partly cloudy

Percy, Friday, 23 October

Partly cloudy. High 66°, low 51°.

Pressure30.21 inHg
Wind13.9 mph N
Humidity30%
Visibility—
Dew point32°

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.