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As of 09:21 CDT

Weather in Sugar Island, IL

76°Current weather

Sugar Island, Sunday, 9 August, 09:21

Partly cloudy. Feels like 78°. High 89°, low 64°.

Pressure29.97 inHg
Wind8.1 mph S
Humidity91%
Visibility6.2 mi
Dew point73°
Mon, 1093° / 73°0.11Rain
93 °Rain

Sugar Island, Monday, 10 August

Rain. High 93°, low 73°.

Pressure29.91 inHg
Wind11.6 mph SW
Humidity63%
Visibility6.2 mi
Dew point73°
Tue, 1190° / 67°0.18Rain
90 °Rain

Sugar Island, Tuesday, 11 August

Rain. High 90°, low 67°.

Pressure29.85 inHg
Wind14 mph SW
Humidity64%
Visibility6.2 mi
Dew point73°
Wed, 1285° / 69°0.04Light rain
85 °Light rain

Sugar Island, Wednesday, 12 August

Light rain. High 85°, low 69°.

Pressure29.85 inHg
Wind5.7 mph N
Humidity60%
Visibility6.2 mi
Dew point67°
Thu, 1380° / 64°0.42Rain
80 °Rain

Sugar Island, Thursday, 13 August

Rain. High 80°, low 64°.

Pressure29.88 inHg
Wind14.3 mph N
Humidity56%
Visibility—
Dew point61°
Fri, 1474° / 64°0.08Light rain
74 °Light rain

Sugar Island, Friday, 14 August

Light rain. High 74°, low 64°.

Pressure30.12 inHg
Wind10.8 mph E
Humidity63%
Visibility—
Dew point59°
Sat, 1574° / 61°0.17Light rain
74 °Light rain

Sugar Island, Saturday, 15 August

Light rain. High 74°, low 61°.

Pressure30.21 inHg
Wind14.3 mph SE
Humidity85%
Visibility—
Dew point64°
Sun, 1681° / 65°0.06Light rain
81 °Light rain

Sugar Island, Sunday, 16 August

Light rain. High 81°, low 65°.

Pressure29.97 inHg
Wind13.2 mph NW
Humidity74%
Visibility—
Dew point70°
Mon, 1776° / 62°0Overcast
76 °Overcast

Sugar Island, Monday, 17 August

Overcast. High 76°, low 62°.

Pressure30.09 inHg
Wind8.4 mph N
Humidity55%
Visibility—
Dew point58°
Tue, 1880° / 58°0Overcast
80 °Overcast

Sugar Island, Tuesday, 18 August

Overcast. High 80°, low 58°.

Pressure29.91 inHg
Wind10.4 mph S
Humidity64%
Visibility—
Dew point61°
Wed, 1980° / 63°0.04Light rain
80 °Light rain

Sugar Island, Wednesday, 19 August

Light rain. High 80°, low 63°.

Pressure29.80 inHg
Wind14.8 mph NW
Humidity54%
Visibility—
Dew point60°
Thu, 2075° / 60°0.16Light rain
75 °Light rain

Sugar Island, Thursday, 20 August

Light rain. High 75°, low 60°.

Pressure29.94 inHg
Wind6.8 mph NW
Humidity65%
Visibility—
Dew point61°
Fri, 2182° / 61°0.45Rain
82 °Rain

Sugar Island, Friday, 21 August

Rain. High 82°, low 61°.

Pressure29.85 inHg
Wind15.6 mph S
Humidity52%
Visibility—
Dew point60°
Sat, 2282° / 65°0.59Heavy rain
82 °Heavy rain

Sugar Island, Saturday, 22 August

Heavy rain. High 82°, low 65°.

Pressure29.80 inHg
Wind13.5 mph NW
Humidity57%
Visibility—
Dew point63°
Sun, 2376° / 59°0Clear
76 °Clear

Sugar Island, Sunday, 23 August

Clear. High 76°, low 59°.

Pressure30.15 inHg
Wind8.7 mph N
Humidity51%
Visibility—
Dew point53°
Mon, 2479° / 59°0Clear
79 °Clear

Sugar Island, Monday, 24 August

Clear. High 79°, low 59°.

Pressure30.21 inHg
Wind4.5 mph S
Humidity53%
Visibility—
Dew point57°

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 Sugar Island, 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 Sugar Island, 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.