Marseilles, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 81°F 27°C Heat Index: 84°F	Observed at: Marseilles, IL	Elevation: 913 ft | 278 m
	Last Updated: July 16, 10:30 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 81°F | 27°C
	Pressure: 29.48 in | 998.3 mb	Dewpoint: 69°F | 21°C
	Humidity: 68%	Wind: E 5 mph | E 8 kph
	Feels Like: 86°F | 30°C	Visibility: 33.2 mi | 53.5 km
	Lat/Long: 41.3308 | -88.7081	Sunrise: 5:35 AM   Sunset: 8:26 PM

7 Day Graphical Forecast

Valid: 10:34 PM 7/16/2026

Tonight Overcast 73 °F 6% Chance Precipitation Friday Overcast 92 |73 °F 28% Chance Precipitation Saturday Light Drizzle 90 |71 °F 48% Chance Precipitation Sunday Overcast 82 |64 °F 4% Chance Precipitation Monday Overcast 84 |65 °F 41% Chance Precipitation Tuesday Overcast 85 |65 °F 41% Chance Precipitation Wednesday Partly Cloudy 71 |49 °F 3% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:34 PM 7/16/2026

10 PM Clear 81 °F 5% Chance Precipitation

11 PM Clear 80 °F 3% Chance Precipitation

12 AM Clear 78 °F 3% Chance Precipitation

1 AM Clear 77 °F 2% Chance Precipitation

2 AM Clear 76 °F 1% Chance Precipitation

3 AM Clear 75 °F 3% Chance Precipitation

4 AM Clear 74 °F 4% Chance Precipitation

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

7 Day & Night Weather Forecast for Marseilles, IL - (Fahrenheit & Celsius) Valid: 10:34 PM 7/16/2026 Tonight Overcast with a low around 73°F [23°C]. WNW wind to around 8 mph [12 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 92°F [33°C]. SW wind to around 12 mph [20 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 69°F [21°C] with humidity of 89%. Pressure around 29.48 in [998.3 mb]. UV Index: 7.5. Chance of precipitation 28% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. SW wind to around 12 mph [20 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 28% with QPF of 0.00 in [0.0 mm]. Saturday Light Drizzle with a high near 90°F [32°C]. WNW wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 69°F [21°C] with humidity of 94%. Pressure around 29.48 in [998.3 mb]. UV Index: 7.5. Chance of precipitation 48% with QPF of 0.05 in [1.4 mm]. Saturday Night Light Drizzle with a low around 71°F [22°C]. WNW wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 48% with QPF of 0.05 in [1.4 mm]. Sunday Overcast with a high near 82°F [28°C]. E wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Dewpoint near 69°F [21°C] with humidity of 94%. Pressure around 29.48 in [998.3 mb]. UV Index: 7.55. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 64°F [18°C]. E wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 84°F [29°C]. S wind to around 12 mph [19 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 69°F [21°C] with humidity of 96%. Pressure around 29.48 in [998.3 mb]. UV Index: 6.95. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 65°F [18°C]. S wind to around 12 mph [19 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 85°F [29°C]. WNW wind to around 17 mph [28 kph], with gusts to near 35 mph [56 kph]. Dewpoint near 69°F [21°C] with humidity of 85%. Pressure around 29.48 in [998.3 mb]. UV Index: 7.25. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 65°F [18°C]. WNW wind to around 17 mph [28 kph], with gusts to near 35 mph [56 kph]. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Wednesday Partly Cloudy with a high near 71°F [22°C]. N wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 69°F [21°C] with humidity of 86%. Pressure around 29.48 in [998.3 mb]. UV Index: 7.3. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Wednesday Night Partly Cloudy with a low around 49°F [10°C]. N wind to around 16 mph [26 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Marseilles, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 1.4 mm | 0.05 in

Saturday Night: 1.4 mm | 0.05 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

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

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

Tonight: WNW @ 12 kph | 8 mph

Friday: SW @ 20 kph | 12 mph

Friday Night: SW @ 20 kph | 12 mph

Saturday: WNW @ 26 kph | 16 mph

Saturday Night: WNW @ 26 kph | 16 mph

Sunday: E @ 11 kph | 7 mph

Sunday Night: E @ 11 kph | 7 mph

Monday: S @ 19 kph | 12 mph

Monday Night: S @ 19 kph | 12 mph

Tuesday: WNW @ 28 kph | 17 mph

Tuesday Night: WNW @ 28 kph | 17 mph

Wednesday: N @ 26 kph | 16 mph

Wednesday Night: N @ 26 kph | 16 mph

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

Tonight: 88 %

Friday: 89 %

Friday Night: 89 %

Saturday: 94 %

Saturday Night: 94 %

Sunday: 94 %

Sunday Night: 94 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 85 %

Tuesday Night: 85 %

Wednesday: 86 %

Wednesday Night: 86 %

7 Day and Night - Snowfall Totals Forecast for Marseilles, 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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