As of 01:46 CDT

Weather in Castle Fin, IL

45°

Castle Fin, Thursday, 22 October, 01:46

Clear. Feels like 43°. High 74°, low 45°.

Pressure30.21 inHg

Wind3.8 mph N

Humidity82%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Fri, 2371° / 44°

71 °

Castle Fin, Friday, 23 October

Clear. High 71°, low 44°.

Pressure30.33 inHg

Wind5.5 mph SE

Humidity46%

Visibility6.2 mi

Dew point46°

Sat, 2470° / 49°

70 °

Castle Fin, Saturday, 24 October

Overcast. High 70°, low 49°.

Pressure30.39 inHg

Wind5.8 mph SE

Humidity50%

Visibility6.2 mi

Dew point48°

Sun, 2572° / 48°

72 °

Castle Fin, Sunday, 25 October

Overcast. High 72°, low 48°.

Pressure30.42 inHg

Wind3 mph S

Humidity48%

Visibility6.2 mi

Dew point47°

Mon, 2671° / 49°

71 °

Castle Fin, Monday, 26 October

Overcast. High 71°, low 49°.

Pressure30.33 inHg

Wind3.7 mph SE

Humidity44%

Visibility—

Dew point44°

Tue, 2771° / 49°

71 °

Castle Fin, Tuesday, 27 October

Overcast. High 71°, low 49°.

Pressure30.21 inHg

Wind7.7 mph SW

Humidity41%

Visibility—

Dew point43°

Wed, 2861° / 47°

0.02

61 °

Castle Fin, Wednesday, 28 October

Light rain. High 61°, low 47°.

Pressure30.21 inHg

Wind12.8 mph W

Humidity73%

Visibility—

Dew point43°

Thu, 2959° / 43°

59 °

Castle Fin, Thursday, 29 October

Mostly clear. High 59°, low 43°.

Pressure30.30 inHg

Wind11.3 mph N

Humidity31%

Visibility—

Dew point25°

Fri, 3064° / 40°

64 °

Castle Fin, Friday, 30 October

Partly cloudy. High 64°, low 40°.

Pressure30.21 inHg

Wind9.5 mph S

Humidity28%

Visibility—

Dew point26°

Sat, 3169° / 49°

69 °

Castle Fin, Saturday, 31 October

Overcast. High 69°, low 49°.

Pressure30.12 inHg

Wind18 mph S

Humidity53%

Visibility—

Dew point46°

Sun, 0162° / 55°

0.64

62 °

Castle Fin, Sunday, 1 November

Rain. High 62°, low 55°.

Pressure30.03 inHg

Wind17.2 mph S

Humidity92%

Visibility—

Dew point53°

Mon, 0261° / 45°

0.12

61 °

Castle Fin, Monday, 2 November

Light rain. High 61°, low 45°.

Pressure30.12 inHg

Wind18.4 mph NW

Humidity45%

Visibility—

Dew point39°

Tue, 0353° / 37°

53 °

Castle Fin, Tuesday, 3 November

Overcast. High 53°, low 37°.

Pressure30.36 inHg

Wind10.9 mph NW

Humidity29%

Visibility—

Dew point17°

Wed, 0452° / 45°

0.03

52 °

Castle Fin, Wednesday, 4 November

Light rain. High 52°, low 45°.

Pressure29.97 inHg

Wind21.7 mph S

Humidity64%

Visibility—

Dew point39°

Thu, 0561° / 42°

0.03

61 °

Castle Fin, Thursday, 5 November

Light rain. High 61°, low 42°.

Pressure29.71 inHg

Wind22.1 mph NW

Humidity39%

Visibility—

Dew point35°

Fri, 0650° / 36°

50 °

Castle Fin, Friday, 6 November

Overcast. High 50°, low 36°.

Pressure30.06 inHg

Wind6.3 mph NW

Humidity36%

Visibility—

Dew point22°

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.