Karnak, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 79°F 26°C Heat Index: 79°F	Observed at: Karnak, IL	Elevation: 388 ft | 118 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 79°F | 26°C
	Pressure: 29.67 in | 1004.9 mb	Dewpoint: 76°F | 24°C
	Humidity: 91%	Wind: SSW 3 mph | SSW 5 kph
	Feels Like: 89°F | 32°C	Visibility: 28.1 mi | 45.3 km
	Lat/Long: 37.2936 | -88.9753	Sunrise: 5:48 AM   Sunset: 8:15 PM

7 Day Graphical Forecast

Valid: 10:24 PM 7/16/2026

Tonight Foggy 72 °F 27% Chance Precipitation Friday Partly Cloudy 89 |74 °F 18% Chance Precipitation Saturday Light Showers 88 |74 °F 34% Chance Precipitation Sunday Drizzle 91 |74 °F 58% Chance Precipitation Monday Light Showers 92 |72 °F 11% Chance Precipitation Tuesday Overcast 96 |77 °F 8% Chance Precipitation Wednesday Overcast 77 |62 °F 8% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:24 PM 7/16/2026

10 PM Clear 79 °F 2% Chance Precipitation

11 PM Clear 78 °F 1% Chance Precipitation

12 AM Clear 78 °F 2% Chance Precipitation

1 AM Clear 77 °F 1% Chance Precipitation

2 AM Clear 76 °F 1% Chance Precipitation

3 AM Clear 76 °F 2% Chance Precipitation

4 AM Clear 75 °F 2% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Karnak, IL - (Fahrenheit & Celsius) Valid: 10:24 PM 7/16/2026 Tonight Foggy with a low around 72°F [22°C]. SW wind to around 9 mph [15 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 27% with QPF of 0.00 in [0.0 mm]. Friday Partly Cloudy with a high near 89°F [32°C]. W wind to around 8 mph [13 kph], with gusts to near 14 mph [22 kph]. Dewpoint near 76°F [24°C] with humidity of 95%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.75. Chance of precipitation 18% with QPF of 0.00 in [0.0 mm]. Friday Night Partly Cloudy with a low around 74°F [23°C]. W wind to around 8 mph [13 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 18% with QPF of 0.00 in [0.0 mm]. Saturday Light Showers with a high near 88°F [31°C]. WSW wind to around 19 mph [31 kph], with gusts to near 31 mph [50 kph]. Dewpoint near 76°F [24°C] with humidity of 90%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.8. Chance of precipitation 34% with QPF of 0.09 in [2.2 mm]. Saturday Night Light Showers with a low around 74°F [23°C]. WSW wind to around 19 mph [31 kph], with gusts to near 31 mph [50 kph]. Chance of precipitation 34% with QPF of 0.09 in [2.2 mm]. Sunday Drizzle with a high near 91°F [33°C]. NW wind to around 8 mph [13 kph], with gusts to near 23 mph [36 kph]. Dewpoint near 76°F [24°C] with humidity of 92%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.8. Chance of precipitation 58% with QPF of 0.04 in [1.1 mm]. Sunday Night Drizzle with a low around 74°F [23°C]. NW wind to around 8 mph [13 kph], with gusts to near 23 mph [36 kph]. Chance of precipitation 58% with QPF of 0.04 in [1.1 mm]. Monday Light Showers with a high near 92°F [33°C]. SSE wind to around 6 mph [10 kph], with gusts to near 12 mph [20 kph]. Dewpoint near 76°F [24°C] with humidity of 97%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.55. Chance of precipitation 11% with QPF of 0.16 in [4.0 mm]. Monday Night Light Showers with a low around 72°F [22°C]. SSE wind to around 6 mph [10 kph], with gusts to near 12 mph [20 kph]. Chance of precipitation 11% with QPF of 0.16 in [4.0 mm]. Tuesday Overcast with a high near 96°F [35°C]. SW wind to around 18 mph [29 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 76°F [24°C] with humidity of 86%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.85. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 77°F [25°C]. SW wind to around 18 mph [29 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 77°F [25°C]. NNE wind to around 16 mph [25 kph], with gusts to near 28 mph [44 kph]. Dewpoint near 76°F [24°C] with humidity of 86%. Pressure around 29.67 in [1004.9 mb]. UV Index: 7.35. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 62°F [17°C]. NNE wind to around 16 mph [25 kph], with gusts to near 28 mph [44 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Karnak, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 2.2 mm | 0.09 in

Saturday Night: 2.2 mm | 0.09 in

Sunday: 1.1 mm | 0.04 in

Sunday Night: 1.1 mm | 0.04 in

Monday: 4.0 mm | 0.16 in

Monday Night: 4.0 mm | 0.16 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Karnak, IL

Tonight: SW @ 15 kph | 9 mph

Friday: W @ 13 kph | 8 mph

Friday Night: W @ 13 kph | 8 mph

Saturday: WSW @ 31 kph | 19 mph

Saturday Night: WSW @ 31 kph | 19 mph

Sunday: NW @ 13 kph | 8 mph

Sunday Night: NW @ 13 kph | 8 mph

Monday: SSE @ 10 kph | 6 mph

Monday Night: SSE @ 10 kph | 6 mph

Tuesday: SW @ 29 kph | 18 mph

Tuesday Night: SW @ 29 kph | 18 mph

Wednesday: NNE @ 25 kph | 16 mph

Wednesday Night: NNE @ 25 kph | 16 mph

7 Day and Night - Maximum Humidity Forecast for Karnak, IL

Tonight: 99 %

Friday: 95 %

Friday Night: 95 %

Saturday: 90 %

Saturday Night: 90 %

Sunday: 92 %

Sunday Night: 92 %

Monday: 97 %

Monday Night: 97 %

Tuesday: 86 %

Tuesday Night: 86 %

Wednesday: 86 %

Wednesday Night: 86 %

7 Day and Night - Snowfall Totals Forecast for Karnak, IL

Tonight: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

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