Kaskaskia, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Mostly Clear 71°F 22°C Heat Index: 71°F	Observed at: Kaskaskia, IL	Elevation: 470 ft | 143 m
	Last Updated: July 29, 5:15 AM Timezone: GMT -5/-4
	Sky Conditions: Mostly Clear	Temperature: 71°F | 22°C
	Pressure: 29.5 in | 999.1 mb	Dewpoint: 68°F | 20°C
	Humidity: 89%	Wind: N 2 mph | N 3 kph
	Feels Like: 77°F | 25°C	Visibility: 28.9 mi | 46.6 km
	Lat/Long: 37.9214 | -89.9131	Sunrise: 6:00 AM   Sunset: 8:11 PM

7 Day Graphical Forecast

Valid: 5:22 AM 7/29/2026

Tonight Mostly Clear 70 °F 2% Chance Precipitation Thursday Overcast 90 |66 °F 0% Chance Precipitation Friday Light Showers 84 |65 °F 66% Chance Precipitation Saturday Light Drizzle 76 |68 °F 66% Chance Precipitation Sunday Mostly Clear 85 |63 °F 27% Chance Precipitation Monday Clear 89 |64 °F 21% Chance Precipitation Tuesday Mostly Clear 92 |64 °F 14% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:22 AM 7/29/2026

5 AM Mostly Clear 71 °F 0% Chance Precipitation

6 AM Clear 70 °F 1% Chance Precipitation

7 AM Clear 71 °F 1% Chance Precipitation

8 AM Clear 73 °F 1% Chance Precipitation

9 AM Clear 75 °F 1% Chance Precipitation

10 AM Clear 78 °F 1% Chance Precipitation

11 AM Clear 82 °F 1% Chance Precipitation

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

7 Day & Night Weather Forecast for Kaskaskia, IL - (Fahrenheit & Celsius) Valid: 5:22 AM 7/29/2026 Tonight Mostly Clear with a low around 70°F [21°C]. NNE wind to around 9 mph [15 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 2% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 90°F [32°C]. E wind to around 6 mph [10 kph], with gusts to near 13 mph [22 kph]. Dewpoint near 68°F [20°C] with humidity of 70%. Pressure around 29.50 in [999.1 mb]. UV Index: 7.5. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 66°F [19°C]. E wind to around 6 mph [10 kph], with gusts to near 13 mph [22 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Light Showers with a high near 84°F [29°C]. SSE wind to around 15 mph [24 kph], with gusts to near 29 mph [47 kph]. Dewpoint near 68°F [20°C] with humidity of 90%. Pressure around 29.50 in [999.1 mb]. UV Index: 6.6. Chance of precipitation 66% with QPF of 0.17 in [4.4 mm]. Friday Night Light Showers with a low around 65°F [18°C]. SSE wind to around 15 mph [24 kph], with gusts to near 29 mph [47 kph]. Chance of precipitation 66% with QPF of 0.17 in [4.4 mm]. Saturday Light Drizzle with a high near 76°F [24°C]. NNW wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 68°F [20°C] with humidity of 97%. Pressure around 29.50 in [999.1 mb]. UV Index: 1.7. Chance of precipitation 66% with QPF of 0.03 in [0.7 mm]. Saturday Night Light Drizzle with a low around 68°F [20°C]. NNW wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 66% with QPF of 0.03 in [0.7 mm]. Sunday Mostly Clear with a high near 85°F [30°C]. NNE wind to around 15 mph [25 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 68°F [20°C] with humidity of 97%. Pressure around 29.50 in [999.1 mb]. UV Index: 7.45. Chance of precipitation 27% with QPF of 0.00 in [0.0 mm]. Sunday Night Mostly Clear with a low around 63°F [17°C]. NNE wind to around 15 mph [25 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 27% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 89°F [31°C]. ENE wind to around 12 mph [19 kph], with gusts to near 12 mph [19 kph]. Dewpoint near 68°F [20°C] with humidity of 97%. Pressure around 29.50 in [999.1 mb]. UV Index: 7.5. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 64°F [18°C]. ENE wind to around 12 mph [19 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Tuesday Mostly Clear with a high near 92°F [33°C]. E wind to around 11 mph [17 kph], with gusts to near 13 mph [20 kph]. Dewpoint near 68°F [20°C] with humidity of 92%. Pressure around 29.50 in [999.1 mb]. UV Index: 7.5. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Tuesday Night Mostly Clear with a low around 64°F [18°C]. E wind to around 11 mph [17 kph], with gusts to near 13 mph [20 kph]. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Kaskaskia, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 4.4 mm | 0.17 in

Friday Night: 4.4 mm | 0.17 in

Saturday: 0.7 mm | 0.03 in

Saturday Night: 0.7 mm | 0.03 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

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

Tonight: NNE @ 15 kph | 9 mph

Thursday: E @ 10 kph | 6 mph

Thursday Night: E @ 10 kph | 6 mph

Friday: SSE @ 24 kph | 15 mph

Friday Night: SSE @ 24 kph | 15 mph

Saturday: NNW @ 26 kph | 16 mph

Saturday Night: NNW @ 26 kph | 16 mph

Sunday: NNE @ 25 kph | 15 mph

Sunday Night: NNE @ 25 kph | 15 mph

Monday: ENE @ 19 kph | 12 mph

Monday Night: ENE @ 19 kph | 12 mph

Tuesday: E @ 17 kph | 11 mph

Tuesday Night: E @ 17 kph | 11 mph

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

Tonight: 92 %

Thursday: 70 %

Thursday Night: 70 %

Friday: 90 %

Friday Night: 90 %

Saturday: 97 %

Saturday Night: 97 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 97 %

Monday Night: 97 %

Tuesday: 92 %

Tuesday Night: 92 %

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

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 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

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