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As of 13:56 CDT

Weather in Southport, IL

87°Current weather

Southport, Sunday, 9 August, 13:56

Clear. Feels like 96°. High 88°, low 67°.

Pressure29.91 inHg
Wind12.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point75°
Mon, 1092° / 73°0Overcast
92 °Overcast

Southport, Monday, 10 August

Overcast. High 92°, low 73°.

Pressure29.88 inHg
Wind6 mph W
Humidity62%
Visibility6.2 mi
Dew point71°
Tue, 1195° / 73°0Overcast
95 °Overcast

Southport, Tuesday, 11 August

Overcast. High 95°, low 73°.

Pressure29.77 inHg
Wind11 mph S
Humidity71%
Visibility6.2 mi
Dew point70°
Wed, 1286° / 68°0Mostly clear
86 °Mostly clear

Southport, Wednesday, 12 August

Mostly clear. High 86°, low 68°.

Pressure29.88 inHg
Wind8.1 mph NE
Humidity59%
Visibility6.2 mi
Dew point68°
Thu, 1386° / 69°0.29Rain
86 °Rain

Southport, Thursday, 13 August

Rain. High 86°, low 69°.

Pressure29.91 inHg
Wind9.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point71°
Fri, 1485° / 69°0.43Rain
85 °Rain

Southport, Friday, 14 August

Rain. High 85°, low 69°.

Pressure29.97 inHg
Wind14.5 mph E
Humidity80%
Visibility—
Dew point71°
Sat, 1596° / 74°0Partly cloudy
96 °Partly cloudy

Southport, Saturday, 15 August

Partly cloudy. High 96°, low 74°.

Pressure29.91 inHg
Wind12.5 mph E
Humidity45%
Visibility—
Dew point65°
Sun, 1681° / 67°0Overcast
81 °Overcast

Southport, Sunday, 16 August

Overcast. High 81°, low 67°.

Pressure30.00 inHg
Wind11.9 mph NW
Humidity70%
Visibility—
Dew point67°
Mon, 1788° / 64°0.02Light rain
88 °Light rain

Southport, Monday, 17 August

Light rain. High 88°, low 64°.

Pressure29.94 inHg
Wind13.9 mph SE
Humidity67%
Visibility—
Dew point67°
Tue, 1893° / 73°0Overcast
93 °Overcast

Southport, Tuesday, 18 August

Overcast. High 93°, low 73°.

Pressure29.88 inHg
Wind12.6 mph SW
Humidity55%
Visibility—
Dew point69°
Wed, 1989° / 70°0Overcast
89 °Overcast

Southport, Wednesday, 19 August

Overcast. High 89°, low 70°.

Pressure30.03 inHg
Wind8.3 mph E
Humidity54%
Visibility—
Dew point65°
Thu, 2091° / 71°0.07Light rain
91 °Light rain

Southport, Thursday, 20 August

Light rain. High 91°, low 71°.

Pressure29.83 inHg
Wind11 mph E
Humidity57%
Visibility—
Dew point69°
Fri, 2186° / 69°0Mostly clear
86 °Mostly clear

Southport, Friday, 21 August

Mostly clear. High 86°, low 69°.

Pressure29.88 inHg
Wind12.5 mph N
Humidity62%
Visibility—
Dew point69°
Sat, 2283° / 58°0Clear
83 °Clear

Southport, Saturday, 22 August

Clear. High 83°, low 58°.

Pressure30.00 inHg
Wind8.5 mph NE
Humidity53%
Visibility—
Dew point60°
Sun, 2390° / 63°0Overcast
90 °Overcast

Southport, Sunday, 23 August

Overcast. High 90°, low 63°.

Pressure29.97 inHg
Wind7.6 mph SE
Humidity51%
Visibility—
Dew point62°
Mon, 2492° / 69°0Mostly clear
92 °Mostly clear

Southport, Monday, 24 August

Mostly clear. High 92°, low 69°.

Pressure30.00 inHg
Wind8.7 mph N
Humidity44%
Visibility—
Dew point62°

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 Southport, 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 Southport, 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.