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As of 04:03 CDT

Weather in Percy, IL

57°Current weather

Percy, Thursday, 8 October, 04:03

Clear. Feels like 57°. High 85°, low 56°.

Pressure30.00 inHg
Wind0 mph N
Humidity100%
Visibility6.2 mi
Dew point56°
Fri, 0988° / 54°0Clear
88 °Clear

Percy, Friday, 9 October

Clear. High 88°, low 54°.

Pressure30.12 inHg
Wind7.8 mph S
Humidity32%
Visibility6.2 mi
Dew point49°
Sat, 1081° / 61°0.06Light rain
81 °Light rain

Percy, Saturday, 10 October

Light rain. High 81°, low 61°.

Pressure30.09 inHg
Wind4.4 mph E
Humidity50%
Visibility6.2 mi
Dew point57°
Sun, 1177° / 59°0.04Light rain
77 °Light rain

Percy, Sunday, 11 October

Light rain. High 77°, low 59°.

Pressure29.94 inHg
Wind7.9 mph N
Humidity60%
Visibility6.2 mi
Dew point57°
Mon, 1290° / 58°0Clear
90 °Clear

Percy, Monday, 12 October

Clear. High 90°, low 58°.

Pressure29.91 inHg
Wind10.8 mph S
Humidity35%
Visibility—
Dew point53°
Tue, 1391° / 69°0Clear
91 °Clear

Percy, Tuesday, 13 October

Clear. High 91°, low 69°.

Pressure29.88 inHg
Wind9.3 mph SW
Humidity38%
Visibility—
Dew point58°
Wed, 1482° / 57°0Clear
82 °Clear

Percy, Wednesday, 14 October

Clear. High 82°, low 57°.

Pressure30.03 inHg
Wind10.4 mph SE
Humidity40%
Visibility—
Dew point49°
Thu, 1592° / 69°0Clear
92 °Clear

Percy, Thursday, 15 October

Clear. High 92°, low 69°.

Pressure29.94 inHg
Wind19.6 mph S
Humidity35%
Visibility—
Dew point57°
Fri, 1680° / 64°0.27Light rain
80 °Light rain

Percy, Friday, 16 October

Light rain. High 80°, low 64°.

Pressure30.09 inHg
Wind15.8 mph S
Humidity54%
Visibility—
Dew point61°
Sat, 1768° / 58°0.02Light rain
68 °Light rain

Percy, Saturday, 17 October

Light rain. High 68°, low 58°.

Pressure30.30 inHg
Wind10 mph N
Humidity46%
Visibility—
Dew point45°
Sun, 1877° / 57°0Overcast
77 °Overcast

Percy, Sunday, 18 October

Overcast. High 77°, low 57°.

Pressure30.21 inHg
Wind7 mph NE
Humidity45%
Visibility—
Dew point47°
Mon, 1984° / 61°0Overcast
84 °Overcast

Percy, Monday, 19 October

Overcast. High 84°, low 61°.

Pressure30.09 inHg
Wind10.7 mph S
Humidity43%
Visibility—
Dew point56°
Tue, 2079° / 65°0Overcast
79 °Overcast

Percy, Tuesday, 20 October

Overcast. High 79°, low 65°.

Pressure30.09 inHg
Wind7.1 mph SW
Humidity53%
Visibility—
Dew point57°
Wed, 2177° / 56°0Clear
77 °Clear

Percy, Wednesday, 21 October

Clear. High 77°, low 56°.

Pressure29.97 inHg
Wind6.4 mph N
Humidity43%
Visibility—
Dew point49°
Thu, 2285° / 57°0Partly cloudy
85 °Partly cloudy

Percy, Thursday, 22 October

Partly cloudy. High 85°, low 57°.

Pressure29.74 inHg
Wind13.6 mph S
Humidity37%
Visibility—
Dew point50°
Fri, 2387° / 69°0Partly cloudy
87 °Partly cloudy

Percy, Friday, 23 October

Partly cloudy. High 87°, low 69°.

Pressure29.85 inHg
Wind14.1 mph S
Humidity43%
Visibility—
Dew point58°

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.