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As of 01:11 CDT

Weather in Lake Catherine, IL

64°Current weather

Lake Catherine, Sunday, 9 August, 01:11

Clear. Feels like 64°. High 81°, low 63°.

Pressure30.03 inHg
Wind5.4 mph SW
Humidity90%
Visibility6.2 mi
Dew point61°
Mon, 1083° / 68°0.41Rain
83 °Rain

Lake Catherine, Monday, 10 August

Rain. High 83°, low 68°.

Pressure29.91 inHg
Wind4.4 mph S
Humidity76%
Visibility6.2 mi
Dew point69°
Tue, 1181° / 65°0.54Heavy rain
81 °Heavy rain

Lake Catherine, Tuesday, 11 August

Heavy rain. High 81°, low 65°.

Pressure29.77 inHg
Wind3.6 mph E
Humidity86%
Visibility6.2 mi
Dew point72°
Wed, 1280° / 63°0.02Light rain
80 °Light rain

Lake Catherine, Wednesday, 12 August

Light rain. High 80°, low 63°.

Pressure29.85 inHg
Wind7.2 mph NW
Humidity70%
Visibility6.2 mi
Dew point69°
Thu, 1369° / 59°0Overcast
69 °Overcast

Lake Catherine, Thursday, 13 August

Overcast. High 69°, low 59°.

Pressure30.03 inHg
Wind7.9 mph E
Humidity65%
Visibility—
Dew point56°
Fri, 1477° / 56°0Clear
77 °Clear

Lake Catherine, Friday, 14 August

Clear. High 77°, low 56°.

Pressure30.12 inHg
Wind6.6 mph SE
Humidity49%
Visibility—
Dew point54°
Sat, 1576° / 57°0Overcast
76 °Overcast

Lake Catherine, Saturday, 15 August

Overcast. High 76°, low 57°.

Pressure30.27 inHg
Wind6.6 mph SW
Humidity51%
Visibility—
Dew point55°
Sun, 1676° / 56°0Overcast
76 °Overcast

Lake Catherine, Sunday, 16 August

Overcast. High 76°, low 56°.

Pressure30.15 inHg
Wind4.8 mph S
Humidity58%
Visibility—
Dew point57°
Mon, 1782° / 62°0Light rain
82 °Light rain

Lake Catherine, Monday, 17 August

Light rain. High 82°, low 62°.

Pressure30.03 inHg
Wind5.5 mph W
Humidity59%
Visibility—
Dew point61°
Tue, 1883° / 65°0Overcast
83 °Overcast

Lake Catherine, Tuesday, 18 August

Overcast. High 83°, low 65°.

Pressure29.97 inHg
Wind14.4 mph SW
Humidity62%
Visibility—
Dew point65°
Wed, 1973° / 59°0.01Light rain
73 °Light rain

Lake Catherine, Wednesday, 19 August

Light rain. High 73°, low 59°.

Pressure29.91 inHg
Wind18.9 mph NW
Humidity74%
Visibility—
Dew point58°
Thu, 2069° / 51°0Overcast
69 °Overcast

Lake Catherine, Thursday, 20 August

Overcast. High 69°, low 51°.

Pressure30.06 inHg
Wind9.4 mph N
Humidity51%
Visibility—
Dew point48°
Fri, 2173° / 52°0Clear
73 °Clear

Lake Catherine, Friday, 21 August

Clear. High 73°, low 52°.

Pressure30.09 inHg
Wind9 mph E
Humidity48%
Visibility—
Dew point49°
Sat, 2265° / 54°0.09Light rain
65 °Light rain

Lake Catherine, Saturday, 22 August

Light rain. High 65°, low 54°.

Pressure29.91 inHg
Wind8.5 mph E
Humidity95%
Visibility—
Dew point58°
Sun, 2379° / 63°0.02Light rain
79 °Light rain

Lake Catherine, Sunday, 23 August

Light rain. High 79°, low 63°.

Pressure29.88 inHg
Wind16.3 mph W
Humidity45%
Visibility—
Dew point54°
Mon, 2481° / 58°0Overcast
81 °Overcast

Lake Catherine, Monday, 24 August

Overcast. High 81°, low 58°.

Pressure30.00 inHg
Wind7.3 mph N
Humidity50%
Visibility—
Dew point58°

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 Lake Catherine, 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 Lake Catherine, 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.