As of 04:53 CDT

Weather in Castle Fin, IL

43°

Castle Fin, Thursday, 22 October, 04:53

Clear. Feels like 41°. High 75°, low 43°.

Pressure30.21 inHg

Wind3.7 mph N

Humidity88%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Fri, 2373° / 44°

73 °

Castle Fin, Friday, 23 October

Clear. High 73°, low 44°.

Pressure30.33 inHg

Wind5.5 mph SE

Humidity46%

Visibility6.2 mi

Dew point46°

Sat, 2470° / 49°

70 °

Castle Fin, Saturday, 24 October

Partly cloudy. High 70°, low 49°.

Pressure30.39 inHg

Wind5.9 mph SE

Humidity48%

Visibility6.2 mi

Dew point47°

Sun, 2572° / 48°

72 °

Castle Fin, Sunday, 25 October

Overcast. High 72°, low 48°.

Pressure30.42 inHg

Wind3.4 mph SE

Humidity44%

Visibility6.2 mi

Dew point47°

Mon, 2671° / 51°

71 °

Castle Fin, Monday, 26 October

Overcast. High 71°, low 51°.

Pressure30.36 inHg

Wind4.4 mph E

Humidity43%

Visibility—

Dew point45°

Tue, 2771° / 51°

71 °

Castle Fin, Tuesday, 27 October

Overcast. High 71°, low 51°.

Pressure30.27 inHg

Wind5.5 mph SE

Humidity41%

Visibility—

Dew point43°

Wed, 2870° / 54°

70 °

Castle Fin, Wednesday, 28 October

Clear. High 70°, low 54°.

Pressure30.15 inHg

Wind10.4 mph W

Humidity48%

Visibility—

Dew point47°

Thu, 2967° / 50°

67 °

Castle Fin, Thursday, 29 October

Overcast. High 67°, low 50°.

Pressure30.15 inHg

Wind6.1 mph NW

Humidity49%

Visibility—

Dew point44°

Fri, 3071° / 58°

0.04

71 °

Castle Fin, Friday, 30 October

Light rain. High 71°, low 58°.

Pressure29.94 inHg

Wind10.2 mph SW

Humidity37%

Visibility—

Dew point42°

Sat, 3168° / 56°

0.52

68 °

Castle Fin, Saturday, 31 October

Rain. High 68°, low 56°.

Pressure29.83 inHg

Wind16.4 mph S

Humidity86%

Visibility—

Dew point54°

Sun, 0166° / 53°

66 °

Castle Fin, Sunday, 1 November

Light rain. High 66°, low 53°.

Pressure29.94 inHg

Wind7.9 mph NE

Humidity44%

Visibility—

Dew point42°

Mon, 0257° / 49°

0.15

57 °

Castle Fin, Monday, 2 November

Light rain. High 57°, low 49°.

Pressure30.09 inHg

Wind14.2 mph NE

Humidity63%

Visibility—

Dew point43°

Tue, 0360° / 44°

60 °

Castle Fin, Tuesday, 3 November

Mostly clear. High 60°, low 44°.

Pressure30.24 inHg

Wind15.3 mph NE

Humidity38%

Visibility—

Dew point32°

Wed, 0455° / 45°

0.03

55 °

Castle Fin, Wednesday, 4 November

Light rain. High 55°, low 45°.

Pressure30.27 inHg

Wind18.4 mph NE

Humidity44%

Visibility—

Dew point32°

Thu, 0549° / 48°

0.25

49 °

Castle Fin, Thursday, 5 November

Light rain. High 49°, low 48°.

Pressure30.21 inHg

Wind15.7 mph NE

Humidity80%

Visibility—

Dew point42°

Fri, 0651° / 47°

0.04

51 °

Castle Fin, Friday, 6 November

Light rain. High 51°, low 47°.

Pressure30.21 inHg

Wind8 mph E

Humidity90%

Visibility—

Dew point46°

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.