As of 07:25 CDT

Weather in Chapin, IL

46°

Chapin, Sunday, 11 October, 07:25

Clear. Feels like 46°. High 84°, low 46°.

Pressure30.00 inHg

Wind0 mph N

Humidity100%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Mon, 1290° / 62°

90 °

Chapin, Monday, 12 October

Mostly clear. High 90°, low 62°.

Pressure29.88 inHg

Wind12 mph SW

Humidity44%

Visibility6.2 mi

Dew point61°

Tue, 1390° / 74°

0.01

90 °

Chapin, Tuesday, 13 October

Light rain. High 90°, low 74°.

Pressure29.85 inHg

Wind8.7 mph W

Humidity50%

Visibility6.2 mi

Dew point66°

Wed, 1480° / 69°

0.15

80 °

Chapin, Wednesday, 14 October

Rain. High 80°, low 69°.

Pressure30.00 inHg

Wind4.9 mph NE

Humidity62%

Visibility6.2 mi

Dew point65°

Thu, 1570° / 60°

0.4

70 °

Chapin, Thursday, 15 October

Rain. High 70°, low 60°.

Pressure30.06 inHg

Wind11.5 mph E

Humidity90%

Visibility—

Dew point62°

Fri, 1661° / 45°

0.47

61 °

Chapin, Friday, 16 October

Rain. High 61°, low 45°.

Pressure30.42 inHg

Wind16.8 mph N

Humidity51%

Visibility—

Dew point42°

Sat, 1743° / 31°

43 °

Chapin, Saturday, 17 October

Mostly clear. High 43°, low 31°.

Pressure30.45 inHg

Wind20.6 mph NW

Humidity38%

Visibility—

Dew point17°

Sun, 1850° / 28°

50 °

Chapin, Sunday, 18 October

Clear. High 50°, low 28°.

Pressure30.53 inHg

Wind8.5 mph S

Humidity30%

Visibility—

Dew point15°

Mon, 1962° / 37°

62 °

Chapin, Monday, 19 October

Partly cloudy. High 62°, low 37°.

Pressure30.30 inHg

Wind15.5 mph S

Humidity28%

Visibility—

Dew point23°

Tue, 2068° / 42°

68 °

Chapin, Tuesday, 20 October

Clear. High 68°, low 42°.

Pressure30.18 inHg

Wind13.3 mph S

Humidity27%

Visibility—

Dew point28°

Wed, 2169° / 46°

69 °

Chapin, Wednesday, 21 October

Overcast. High 69°, low 46°.

Pressure30.21 inHg

Wind13.1 mph SW

Humidity29%

Visibility—

Dew point33°

Thu, 2271° / 55°

0.01

71 °

Chapin, Thursday, 22 October

Light rain. High 71°, low 55°.

Pressure30.33 inHg

Wind8.4 mph S

Humidity67%

Visibility—

Dew point53°

Fri, 2373° / 51°

73 °

Chapin, Friday, 23 October

Mostly clear. High 73°, low 51°.

Pressure30.27 inHg

Wind15.3 mph S

Humidity52%

Visibility—

Dew point50°

Sat, 2463° / 47°

0.07

63 °

Chapin, Saturday, 24 October

Light rain. High 63°, low 47°.

Pressure30.18 inHg

Wind16.6 mph NW

Humidity48%

Visibility—

Dew point42°

Sun, 2556° / 39°

56 °

Chapin, Sunday, 25 October

Clear. High 56°, low 39°.

Pressure30.42 inHg

Wind7.8 mph NW

Humidity41%

Visibility—

Dew point29°

Mon, 2662° / 41°

62 °

Chapin, Monday, 26 October

Clear. High 62°, low 41°.

Pressure30.09 inHg

Wind13.7 mph NW

Humidity38%

Visibility—

Dew point33°

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 Chapin, 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 Chapin, 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.