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As of 23:41 CDT

Weather in Winthrop Harbor, IL

65°Current weather

Winthrop Harbor, Saturday, 8 August, 23:41

Clear. Feels like 65°. High 82°, low 65°.

Pressure30.03 inHg
Wind4.7 mph W
Humidity89%
Visibility6.2 mi
Dew point61°
Sun, 0981° / 64°1.29Heavy rain
81 °Heavy rain

Winthrop Harbor, Sunday, 9 August

Heavy rain. High 81°, low 64°.

Pressure29.94 inHg
Wind9.8 mph SW
Humidity77%
Visibility6.2 mi
Dew point70°
Mon, 1083° / 70°0.47Rain
83 °Rain

Winthrop Harbor, Monday, 10 August

Rain. High 83°, low 70°.

Pressure29.91 inHg
Wind3.5 mph SE
Humidity85%
Visibility6.2 mi
Dew point70°
Tue, 1176° / 69°0.79Heavy rain
76 °Heavy rain

Winthrop Harbor, Tuesday, 11 August

Heavy rain. High 76°, low 69°.

Pressure29.80 inHg
Wind5.4 mph E
Humidity90%
Visibility6.2 mi
Dew point70°
Wed, 1279° / 67°0.02Light rain
79 °Light rain

Winthrop Harbor, Wednesday, 12 August

Light rain. High 79°, low 67°.

Pressure29.85 inHg
Wind2.9 mph NW
Humidity71%
Visibility6.2 mi
Dew point67°
Thu, 1369° / 64°0Overcast
69 °Overcast

Winthrop Harbor, Thursday, 13 August

Overcast. High 69°, low 64°.

Pressure30.03 inHg
Wind13.1 mph NE
Humidity60%
Visibility—
Dew point54°
Fri, 1473° / 59°0Mostly clear
73 °Mostly clear

Winthrop Harbor, Friday, 14 August

Mostly clear. High 73°, low 59°.

Pressure30.12 inHg
Wind6.9 mph E
Humidity59%
Visibility—
Dew point56°
Sat, 1573° / 61°0Overcast
73 °Overcast

Winthrop Harbor, Saturday, 15 August

Overcast. High 73°, low 61°.

Pressure30.30 inHg
Wind8.5 mph E
Humidity56%
Visibility—
Dew point56°
Sun, 1673° / 60°0Overcast
73 °Overcast

Winthrop Harbor, Sunday, 16 August

Overcast. High 73°, low 60°.

Pressure30.15 inHg
Wind6.5 mph SE
Humidity63%
Visibility—
Dew point58°
Mon, 1779° / 64°0Light rain
79 °Light rain

Winthrop Harbor, Monday, 17 August

Light rain. High 79°, low 64°.

Pressure30.03 inHg
Wind7 mph SW
Humidity63%
Visibility—
Dew point62°
Tue, 1882° / 67°0Overcast
82 °Overcast

Winthrop Harbor, Tuesday, 18 August

Overcast. High 82°, low 67°.

Pressure29.94 inHg
Wind12.1 mph SW
Humidity62%
Visibility—
Dew point65°
Wed, 1973° / 62°0Overcast
73 °Overcast

Winthrop Harbor, Wednesday, 19 August

Overcast. High 73°, low 62°.

Pressure29.91 inHg
Wind17.1 mph NW
Humidity72%
Visibility—
Dew point59°
Thu, 2067° / 56°0Overcast
67 °Overcast

Winthrop Harbor, Thursday, 20 August

Overcast. High 67°, low 56°.

Pressure30.06 inHg
Wind11.7 mph NW
Humidity59%
Visibility—
Dew point51°
Fri, 2169° / 56°0Clear
69 °Clear

Winthrop Harbor, Friday, 21 August

Clear. High 69°, low 56°.

Pressure30.09 inHg
Wind8.8 mph E
Humidity54%
Visibility—
Dew point50°
Sat, 2266° / 62°0.09Light rain
66 °Light rain

Winthrop Harbor, Saturday, 22 August

Light rain. High 66°, low 62°.

Pressure29.91 inHg
Wind12.7 mph SE
Humidity89%
Visibility—
Dew point59°
Sun, 2379° / 65°0Light rain
79 °Light rain

Winthrop Harbor, Sunday, 23 August

Light rain. High 79°, low 65°.

Pressure29.88 inHg
Wind15 mph W
Humidity48%
Visibility—
Dew point55°

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 Winthrop Harbor, 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 Winthrop Harbor, 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.