As of 09:54 CDT

Weather in Castle Fin, IL

61°

Castle Fin, Friday, 23 October, 09:54

Clear. Feels like 60°. High 72°, low 45°.

Pressure30.30 inHg

Wind4.5 mph SE

Humidity68%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

Sat, 2472° / 44°

72 °

Castle Fin, Saturday, 24 October

Overcast. High 72°, low 44°.

Pressure30.39 inHg

Wind5.7 mph SE

Humidity49%

Visibility6.2 mi

Dew point47°

Sun, 2572° / 46°

72 °

Castle Fin, Sunday, 25 October

Overcast. High 72°, low 46°.

Pressure30.42 inHg

Wind3.5 mph S

Humidity47%

Visibility6.2 mi

Dew point49°

Mon, 2671° / 51°

71 °

Castle Fin, Monday, 26 October

Overcast. High 71°, low 51°.

Pressure30.33 inHg

Wind2.1 mph S

Humidity50%

Visibility6.2 mi

Dew point51°

Tue, 2770° / 51°

70 °

Castle Fin, Tuesday, 27 October

Overcast. High 70°, low 51°.

Pressure30.27 inHg

Wind4.9 mph SE

Humidity49%

Visibility—

Dew point47°

Wed, 2872° / 53°

72 °

Castle Fin, Wednesday, 28 October

Clear. High 72°, low 53°.

Pressure30.15 inHg

Wind10.6 mph SW

Humidity42%

Visibility—

Dew point45°

Thu, 2977° / 56°

77 °

Castle Fin, Thursday, 29 October

Overcast. High 77°, low 56°.

Pressure30.12 inHg

Wind15.2 mph SW

Humidity27%

Visibility—

Dew point37°

Fri, 3064° / 55°

64 °

Castle Fin, Friday, 30 October

Overcast. High 64°, low 55°.

Pressure30.15 inHg

Wind9.7 mph N

Humidity57%

Visibility—

Dew point48°

Sat, 3158° / 54°

0.22

58 °

Castle Fin, Saturday, 31 October

Light rain. High 58°, low 54°.

Pressure30.09 inHg

Wind8.6 mph E

Humidity91%

Visibility—

Dew point53°

Sun, 0167° / 51°

67 °

Castle Fin, Sunday, 1 November

Partly cloudy. High 67°, low 51°.

Pressure30.09 inHg

Wind6.8 mph NE

Humidity60%

Visibility—

Dew point49°

Mon, 0266° / 52°

0.15

66 °

Castle Fin, Monday, 2 November

Light rain. High 66°, low 52°.

Pressure30.03 inHg

Wind7.2 mph SE

Humidity56%

Visibility—

Dew point48°

Tue, 0364° / 58°

0.21

64 °

Castle Fin, Tuesday, 3 November

Light rain. High 64°, low 58°.

Pressure29.71 inHg

Wind11.3 mph SE

Humidity97%

Visibility—

Dew point60°

Wed, 0473° / 61°

0.13

73 °

Castle Fin, Wednesday, 4 November

Light rain. High 73°, low 61°.

Pressure29.68 inHg

Wind10.5 mph NW

Humidity73%

Visibility—

Dew point59°

Thu, 0577° / 58°

77 °

Castle Fin, Thursday, 5 November

Light rain. High 77°, low 58°.

Pressure29.83 inHg

Wind10.6 mph S

Humidity54%

Visibility—

Dew point55°

Fri, 0671° / 57°

71 °

Castle Fin, Friday, 6 November

Overcast. High 71°, low 57°.

Pressure29.94 inHg

Wind10.6 mph W

Humidity51%

Visibility—

Dew point48°

Sat, 0775° / 55°

75 °

Castle Fin, Saturday, 7 November

Clear. High 75°, low 55°.

Pressure29.83 inHg

Wind13.3 mph W

Humidity36%

Visibility—

Dew point42°

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.