Summersville, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Cloudy 22°F
Feels Like 20°F  
Humidity 80% Dew Point 17°F Wind N 2 MPH Gusts 5 Barometer 31.65 in.
Report from a MADIS/MESONET weather station 3.4 mi. WNW of central Summersville
at

Point Forecast at a Glance

ThuDec 4
Thu Dec 4: Mostly Clear, Low 18F
 
18
FriDec 5
Fri Dec 5: Sunny, High 40F, Low 27F
40
27
SatDec 6
Sat Dec 6: Partly Sunny, High 41F, Low 27F
41
27
SunDec 7
Sun Dec 7: Showers, High 41F, Low 19F
30%
41
19
MonDec 8
Mon Dec 8: Mostly Sunny, High 34F, Low 22F
34
22
TueDec 9
Tue Dec 9: Mostly Sunny, High 45F, Low 31F
45
31
WedDec 10
Wed Dec 10: Showers, High 48F, Low 23F
50%
48
23

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 34°F to 48°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 3°F below the historical average for December. Normal highs for this period are around 44°F with lows around 26°F.

This Date in Weather History

1972 - Winds gusting to 70 mph sent the temperature at Livingston, MT, plunging from 52 degrees to 18 degrees in just twenty minutes.

More on this and other weather history

Summersville, IL 7 Day Weather Forecast Details

Thursday Dec 4

Mostly Clear

Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Calm wind.

Friday Dec 5

Sunny

Day: Sunny, with a high near 40. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

Increasing Clouds

Night: Increasing clouds, with a low around 27. South southwest wind 3 to 6 mph.

Saturday Dec 6

Partly Sunny

Day: Partly sunny, with a high near 41. Light and variable wind becoming north northwest around 5 mph.

Freezing Rain

Night: A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 27. Light and variable wind. Chance of precipitation is 20%.

Sunday Dec 7

Showers

Day: A 30 percent chance of showers before noon. Mostly cloudy, with a high near 41. Light and variable wind becoming north 5 to 9 mph in the morning.

Snow Showers

Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 19. North wind 5 to 9 mph.

Monday Dec 8

Mostly Sunny

Day: Mostly sunny, with a high near 34. North northeast wind around 5 mph becoming light and variable in the afternoon.

Partly Cloudy

Night: Partly cloudy, with a low around 22. Calm wind becoming south southwest 5 to 8 mph after midnight.

Tuesday Dec 9

Mostly Sunny

Day: Mostly sunny, with a high near 45. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 31. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.

Wednesday Dec 10

Showers

Day: A chance of showers. Mostly cloudy, with a high near 48. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

Showers

Night: A slight chance of showers. Mostly cloudy, with a low around 23. Northwest wind 7 to 9 mph.

Thursday Dec 11

Partly Sunny

Day: Partly sunny, with a high near 35. West northwest wind 7 to 10 mph.

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.