Southport, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Station

35°F
Feels Like 35°F  
Humidity 85% Dew Point 31°F Wind Calm Barometer 29.99 in.
Report from a MADIS/MESONET weather station 11.2 mi. NW of central Southport
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Point Forecast at a Glance

WedDec 17
Wed Dec 17: Partly Sunny, High 39F, Low 44F
39
44
ThuDec 18
Thu Dec 18: Rain, High 48F, Low 13F
90%
48
13
FriDec 19
Fri Dec 19: Mostly Sunny, High 32F, Low 25F
32
25
SatDec 20
Sat Dec 20: Partly Sunny, High 48F, Low 22F
48
22
SunDec 21
Sun Dec 21: Mostly Sunny, High 36F, Low 22F
36
22
MonDec 22
Mon Dec 22: Partly Sunny, High 40F, Low 32F
40
32
TueDec 23
Tue Dec 23: Mostly Cloudy, High 47F
47
 

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7-Day Temperature Trend

Week Ahead Summary

Significant warming trend with high temperatures climbing from 39°F to 47°F, reaching a high of 48°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for December. Normal highs for this period are around 37°F with lows around 21°F.

This Date in Weather History

1884 - A three week blockade of snow began at Portland, OR. A record December total of 34 inches was received.

More on this and other weather history

Southport, IL 7 Day Weather Forecast Details

Wednesday Dec 17

Partly Sunny

Day: Partly sunny, with a high near 39. Calm wind becoming southeast 5 to 7 mph in the afternoon.

Rain Likely

Night: Rain likely, mainly after 4am. Mostly cloudy, with a temperature rising to around 44 by 4am. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Dec 18

Rain

Day: Rain, mainly before noon. Temperature rising to near 48 by 9am, then falling to around 34 during the remainder of the day. Breezy, with a south southwest wind 17 to 23 mph becoming west in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Flurries

Night: A chance of flurries between midnight and 3am. Mostly cloudy, with a low around 13. Wind chill values between -1 and 9. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 39 mph.

Friday Dec 19

Mostly Sunny

Day: Mostly sunny, with a high near 32. West northwest wind 7 to 14 mph becoming south in the afternoon. Winds could gust as high as 23 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 25. South wind 9 to 15 mph, with gusts as high as 25 mph.

Saturday Dec 20

Partly Sunny

Day: Partly sunny, with a high near 48. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 22.

Sunday Dec 21

Mostly Sunny

Day: Mostly sunny, with a high near 36.

Mostly Cloudy

Night: Mostly cloudy, with a low around 22.

Monday Dec 22

Partly Sunny

Day: Partly sunny, with a high near 40.

Mostly Cloudy

Night: Mostly cloudy, with a low around 32.

Tuesday Dec 23

Mostly Cloudy

Day: Mostly cloudy, with a high near 47.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.