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As of 00:40 CDT

Weather in McCullom Lake, IL

65°Current weather

McCullom Lake, Sunday, 9 August, 00:40

Clear. Feels like 66°. High 83°, low 62°.

Pressure30.03 inHg
Wind1 mph SW
Humidity90%
Visibility6.2 mi
Dew point62°
Mon, 1083° / 68°0.78Heavy rain
83 °Heavy rain

McCullom Lake, Monday, 10 August

Heavy rain. High 83°, low 68°.

Pressure29.91 inHg
Wind4.5 mph SE
Humidity73%
Visibility6.2 mi
Dew point68°
Tue, 1182° / 66°0.61Heavy rain
82 °Heavy rain

McCullom Lake, Tuesday, 11 August

Heavy rain. High 82°, low 66°.

Pressure29.77 inHg
Wind2.9 mph SE
Humidity88%
Visibility6.2 mi
Dew point73°
Wed, 1280° / 63°0.01Light rain
80 °Light rain

McCullom Lake, Wednesday, 12 August

Light rain. High 80°, low 63°.

Pressure29.85 inHg
Wind6.6 mph W
Humidity72%
Visibility6.2 mi
Dew point69°
Thu, 1369° / 59°0Overcast
69 °Overcast

McCullom Lake, Thursday, 13 August

Overcast. High 69°, low 59°.

Pressure30.03 inHg
Wind8.4 mph E
Humidity69%
Visibility—
Dew point57°
Fri, 1477° / 56°0Clear
77 °Clear

McCullom Lake, Friday, 14 August

Clear. High 77°, low 56°.

Pressure30.12 inHg
Wind6.6 mph E
Humidity52%
Visibility—
Dew point55°
Sat, 1575° / 57°0Overcast
75 °Overcast

McCullom Lake, Saturday, 15 August

Overcast. High 75°, low 57°.

Pressure30.27 inHg
Wind9.6 mph SW
Humidity55%
Visibility—
Dew point56°
Sun, 1675° / 56°0Overcast
75 °Overcast

McCullom Lake, Sunday, 16 August

Overcast. High 75°, low 56°.

Pressure30.15 inHg
Wind4.2 mph E
Humidity65%
Visibility—
Dew point58°
Mon, 1780° / 62°0.02Light rain
80 °Light rain

McCullom Lake, Monday, 17 August

Light rain. High 80°, low 62°.

Pressure30.03 inHg
Wind4.9 mph W
Humidity62%
Visibility—
Dew point62°
Tue, 1882° / 65°0Overcast
82 °Overcast

McCullom Lake, Tuesday, 18 August

Overcast. High 82°, low 65°.

Pressure29.97 inHg
Wind13.5 mph SW
Humidity65%
Visibility—
Dew point66°
Wed, 1973° / 58°0.01Light rain
73 °Light rain

McCullom Lake, Wednesday, 19 August

Light rain. High 73°, low 58°.

Pressure29.94 inHg
Wind17.8 mph NW
Humidity76%
Visibility—
Dew point57°
Thu, 2067° / 52°0Overcast
67 °Overcast

McCullom Lake, Thursday, 20 August

Overcast. High 67°, low 52°.

Pressure30.06 inHg
Wind9.6 mph N
Humidity58%
Visibility—
Dew point49°
Fri, 2173° / 53°0Clear
73 °Clear

McCullom Lake, Friday, 21 August

Clear. High 73°, low 53°.

Pressure30.09 inHg
Wind9.2 mph E
Humidity51%
Visibility—
Dew point51°
Sat, 2266° / 55°0.06Light rain
66 °Light rain

McCullom Lake, Saturday, 22 August

Light rain. High 66°, low 55°.

Pressure29.88 inHg
Wind8.4 mph E
Humidity91%
Visibility—
Dew point57°
Sun, 2379° / 63°0.01Light rain
79 °Light rain

McCullom Lake, Sunday, 23 August

Light rain. High 79°, low 63°.

Pressure29.88 inHg
Wind15.5 mph W
Humidity47%
Visibility—
Dew point55°
Mon, 2480° / 59°0Overcast
80 °Overcast

McCullom Lake, Monday, 24 August

Overcast. High 80°, low 59°.

Pressure30.00 inHg
Wind6 mph NW
Humidity51%
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 McCullom Lake, 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 McCullom Lake, 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.