As of 02:54 CDT

Weather in Percy, IL

61°

Percy, Thursday, 8 October, 02:54

Clear. Feels like 61°. High 84°, low 55°.

Pressure30.00 inHg

Wind0 mph N

Humidity94%

Visibility6.2 mi

Dew point59°

See detailed hourly forecast

Fri, 0987° / 53°

87 °

Percy, Friday, 9 October

Clear. High 87°, low 53°.

Pressure30.15 inHg

Wind7.6 mph S

Humidity35%

Visibility6.2 mi

Dew point50°

Sat, 1081° / 62°

0.05

81 °

Percy, Saturday, 10 October

Light rain. High 81°, low 62°.

Pressure30.12 inHg

Wind6.4 mph SE

Humidity45%

Visibility6.2 mi

Dew point58°

Sun, 1172° / 61°

0.33

72 °

Percy, Sunday, 11 October

Heavy rain. High 72°, low 61°.

Pressure29.91 inHg

Wind6.4 mph N

Humidity77%

Visibility6.2 mi

Dew point59°

Mon, 1287° / 58°

87 °

Percy, Monday, 12 October

Clear. High 87°, low 58°.

Pressure29.91 inHg

Wind12 mph SW

Humidity47%

Visibility—

Dew point59°

Tue, 1377° / 62°

0.04

77 °

Percy, Tuesday, 13 October

Light rain. High 77°, low 62°.

Pressure30.00 inHg

Wind11.8 mph N

Humidity55%

Visibility—

Dew point55°

Wed, 1475° / 55°

75 °

Percy, Wednesday, 14 October

Overcast. High 75°, low 55°.

Pressure30.06 inHg

Wind9 mph E

Humidity48%

Visibility—

Dew point44°

Thu, 1593° / 68°

93 °

Percy, Thursday, 15 October

Clear. High 93°, low 68°.

Pressure29.91 inHg

Wind17.6 mph S

Humidity39%

Visibility—

Dew point61°

Fri, 1689° / 66°

0.31

89 °

Percy, Friday, 16 October

Rain. High 89°, low 66°.

Pressure29.97 inHg

Wind16.9 mph SW

Humidity44%

Visibility—

Dew point63°

Sat, 1757° / 51°

0.37

57 °

Percy, Saturday, 17 October

Rain. High 57°, low 51°.

Pressure30.24 inHg

Wind11.5 mph NW

Humidity42%

Visibility—

Dew point33°

Sun, 1861° / 41°

61 °

Percy, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure30.30 inHg

Wind9.1 mph N

Humidity40%

Visibility—

Dew point32°

Mon, 1966° / 42°

66 °

Percy, Monday, 19 October

Clear. High 66°, low 42°.

Pressure30.30 inHg

Wind5.2 mph NE

Humidity32%

Visibility—

Dew point31°

Tue, 2072° / 47°

72 °

Percy, Tuesday, 20 October

Overcast. High 72°, low 47°.

Pressure30.15 inHg

Wind4 mph NW

Humidity29%

Visibility—

Dew point35°

Wed, 2165° / 48°

65 °

Percy, Wednesday, 21 October

Overcast. High 65°, low 48°.

Pressure30.15 inHg

Wind9.1 mph NE

Humidity42%

Visibility—

Dew point38°

Thu, 2260° / 54°

60 °

Percy, Thursday, 22 October

Overcast. High 60°, low 54°.

Pressure29.80 inHg

Wind12.8 mph S

Humidity72%

Visibility—

Dew point48°

Fri, 2355° / 53°

0.12

55 °

Percy, Friday, 23 October

Light rain. High 55°, low 53°.

Pressure29.80 inHg

Wind10 mph S

Humidity90%

Visibility—

Dew point52°

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.