As of 12:01 CDT

Weather in Castle Fin, IL

71°

Castle Fin, Tuesday, 27 October, 12:01

Overcast. Feels like 70°. High 72°, low 48°.

Pressure30.24 inHg

Wind3 mph S

Humidity53%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Wed, 2876° / 46°

76 °

Castle Fin, Wednesday, 28 October

Clear. High 76°, low 46°.

Pressure30.24 inHg

Wind6.8 mph S

Humidity51%

Visibility6.2 mi

Dew point51°

Thu, 2975° / 50°

75 °

Castle Fin, Thursday, 29 October

Clear. High 75°, low 50°.

Pressure30.15 inHg

Wind9.9 mph SW

Humidity53%

Visibility6.2 mi

Dew point53°

Fri, 3073° / 56°

73 °

Castle Fin, Friday, 30 October

Partly cloudy. High 73°, low 56°.

Pressure30.27 inHg

Wind6.4 mph E

Humidity59%

Visibility6.2 mi

Dew point55°

Sat, 3170° / 57°

70 °

Castle Fin, Saturday, 31 October

Overcast. High 70°, low 57°.

Pressure30.24 inHg

Wind5.8 mph SE

Humidity64%

Visibility6.2 mi

Dew point54°

Sun, 0163° / 57°

0.05

63 °

Castle Fin, Sunday, 1 November

Light rain. High 63°, low 57°.

Pressure30.21 inHg

Wind8.3 mph SE

Humidity81%

Visibility—

Dew point56°

Mon, 0267° / 59°

0.03

67 °

Castle Fin, Monday, 2 November

Light rain. High 67°, low 59°.

Pressure29.85 inHg

Wind7.5 mph NE

Humidity90%

Visibility—

Dew point59°

Tue, 0362° / 56°

62 °

Castle Fin, Tuesday, 3 November

Overcast. High 62°, low 56°.

Pressure29.94 inHg

Wind15.6 mph E

Humidity68%

Visibility—

Dew point51°

Wed, 0463° / 53°

0.13

63 °

Castle Fin, Wednesday, 4 November

Light rain. High 63°, low 53°.

Pressure29.83 inHg

Wind15.2 mph E

Humidity72%

Visibility—

Dew point53°

Thu, 0561° / 58°

0.75

61 °

Castle Fin, Thursday, 5 November

Rain. High 61°, low 58°.

Pressure29.59 inHg

Wind17.6 mph E

Humidity94%

Visibility—

Dew point58°

Fri, 0658° / 52°

0.3

58 °

Castle Fin, Friday, 6 November

Rain. High 58°, low 52°.

Pressure29.74 inHg

Wind12.9 mph N

Humidity88%

Visibility—

Dew point51°

Sat, 0755° / 50°

55 °

Castle Fin, Saturday, 7 November

Overcast. High 55°, low 50°.

Pressure29.91 inHg

Wind10.1 mph N

Humidity65%

Visibility—

Dew point43°

Sun, 0860° / 43°

60 °

Castle Fin, Sunday, 8 November

Mostly clear. High 60°, low 43°.

Pressure30.06 inHg

Wind7.1 mph S

Humidity47%

Visibility—

Dew point36°

Mon, 0963° / 45°

0.37

63 °

Castle Fin, Monday, 9 November

Rain. High 63°, low 45°.

Pressure29.85 inHg

Wind20.3 mph SW

Humidity50%

Visibility—

Dew point42°

Tue, 1050° / 40°

50 °

Castle Fin, Tuesday, 10 November

Overcast. High 50°, low 40°.

Pressure30.00 inHg

Wind16.3 mph NW

Humidity54%

Visibility—

Dew point33°

Wed, 1147° / 33°

47 °

Castle Fin, Wednesday, 11 November

Partly cloudy. High 47°, low 33°.

Pressure30.30 inHg

Wind9.4 mph NW

Humidity37%

Visibility—

Dew point19°

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 Castle Fin, 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 Castle Fin, 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.