EN
English Español

As of 04:40 CDT

Weather in Heritage Lake, IL

68°Current weather

Heritage Lake, Sunday, 9 August, 04:40

Partly cloudy. Feels like 69°. High 91°, low 68°.

Pressure30.00 inHg
Wind6.2 mph S
Humidity96%
Visibility6.2 mi
Dew point67°
Mon, 1095° / 76°0Overcast
95 °Overcast

Heritage Lake, Monday, 10 August

Overcast. High 95°, low 76°.

Pressure29.91 inHg
Wind9.5 mph W
Humidity62%
Visibility6.2 mi
Dew point73°
Tue, 1195° / 69°0.05Light rain
95 °Light rain

Heritage Lake, Tuesday, 11 August

Light rain. High 95°, low 69°.

Pressure29.83 inHg
Wind11.4 mph SW
Humidity63%
Visibility6.2 mi
Dew point74°
Wed, 1282° / 72°0.62Heavy rain
82 °Heavy rain

Heritage Lake, Wednesday, 12 August

Heavy rain. High 82°, low 72°.

Pressure29.80 inHg
Wind10.8 mph E
Humidity95%
Visibility6.2 mi
Dew point71°
Thu, 1380° / 64°0.06Light rain
80 °Light rain

Heritage Lake, Thursday, 13 August

Light rain. High 80°, low 64°.

Pressure29.97 inHg
Wind18.2 mph NE
Humidity67%
Visibility—
Dew point66°
Fri, 1468° / 60°1.02Rain
68 °Rain

Heritage Lake, Friday, 14 August

Rain. High 68°, low 60°.

Pressure30.15 inHg
Wind11.7 mph E
Humidity80%
Visibility—
Dew point56°
Sat, 1575° / 61°0.05Light rain
75 °Light rain

Heritage Lake, Saturday, 15 August

Light rain. High 75°, low 61°.

Pressure30.18 inHg
Wind12 mph SE
Humidity75%
Visibility—
Dew point63°
Sun, 1680° / 65°0.04Light rain
80 °Light rain

Heritage Lake, Sunday, 16 August

Light rain. High 80°, low 65°.

Pressure30.06 inHg
Wind8.1 mph SE
Humidity78%
Visibility—
Dew point70°
Mon, 1782° / 66°0Partly cloudy
82 °Partly cloudy

Heritage Lake, Monday, 17 August

Partly cloudy. High 82°, low 66°.

Pressure30.09 inHg
Wind5.9 mph NE
Humidity66%
Visibility—
Dew point67°
Tue, 1883° / 67°0Partly cloudy
83 °Partly cloudy

Heritage Lake, Tuesday, 18 August

Partly cloudy. High 83°, low 67°.

Pressure30.00 inHg
Wind9.2 mph SE
Humidity67%
Visibility—
Dew point67°
Wed, 1993° / 72°0Partly cloudy
93 °Partly cloudy

Heritage Lake, Wednesday, 19 August

Partly cloudy. High 93°, low 72°.

Pressure29.88 inHg
Wind16 mph S
Humidity66%
Visibility—
Dew point73°
Thu, 20100° / 76°0Overcast
100 °Overcast

Heritage Lake, Thursday, 20 August

Overcast. High 100°, low 76°.

Pressure29.80 inHg
Wind9.4 mph S
Humidity47%
Visibility—
Dew point71°
Fri, 2189° / 75°0Partly cloudy
89 °Partly cloudy

Heritage Lake, Friday, 21 August

Partly cloudy. High 89°, low 75°.

Pressure29.88 inHg
Wind10.2 mph NE
Humidity77%
Visibility—
Dew point75°
Sat, 2299° / 72°0.1Light rain
99 °Light rain

Heritage Lake, Saturday, 22 August

Light rain. High 99°, low 72°.

Pressure29.83 inHg
Wind25 mph W
Humidity50%
Visibility—
Dew point71°
Sun, 2398° / 74°0.02Light rain
98 °Light rain

Heritage Lake, Sunday, 23 August

Light rain. High 98°, low 74°.

Pressure29.83 inHg
Wind17.4 mph SW
Humidity42%
Visibility—
Dew point68°
Mon, 2481° / 69°0.13Light rain
81 °Light rain

Heritage Lake, Monday, 24 August

Light rain. High 81°, low 69°.

Pressure30.00 inHg
Wind12.5 mph E
Humidity77%
Visibility—
Dew point71°

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 Heritage 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 Heritage 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.