East Saint Louis, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 84°F 29°C Heat Index: 94°F	Observed at: East Saint Louis, IL	Elevation: 561 ft | 171 m
	Last Updated: July 25, 9:00 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 84°F | 29°C
	Pressure: 29.46 in | 997.7 mb	Dewpoint: 78°F | 26°C
	Humidity: 81%	Wind: SE 6 mph | SE 10 kph
	Feels Like: 94°F | 34°C	Visibility: 35.3 mi | 56.8 km
	Lat/Long: 38.6244 | -90.1508	Sunrise: 5:56 AM   Sunset: 8:17 PM

7 Day Graphical Forecast

Valid: 10:21 AM 7/28/2026

Tonight Light Rain 69 °F 64% Chance Precipitation Sunday Overcast 98 |78 °F 10% Chance Precipitation Monday Overcast 103 |79 °F 5% Chance Precipitation Tuesday Thunderstorm 105 |77 °F 6% Chance Precipitation Wednesday Overcast 91 |76 °F 6% Chance Precipitation Thursday Light Drizzle 87 |71 °F 3% Chance Precipitation Friday Light Drizzle 87 |72 °F 18% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:21 AM 7/28/2026

10 AM Clear 96 °F 0% Chance Precipitation

11 AM Overcast 99 °F 0% Chance Precipitation

12 PM Overcast 102 °F 0% Chance Precipitation

1 PM Partly Cloudy 104 °F 0% Chance Precipitation

2 PM Overcast 104 °F 2% Chance Precipitation

3 PM Overcast 105 °F 2% Chance Precipitation

4 PM Partly Cloudy 104 °F 2% Chance Precipitation

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

7 Day & Night Weather Forecast for East Saint Louis, IL - (Fahrenheit & Celsius) Valid: 10:21 AM 7/28/2026 Tonight Light Rain with a low around 69°F [20°C]. SSE wind to around 7 mph [12 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 64% with QPF of 0.06 in [1.4 mm]. Sunday Overcast with a high near 98°F [36°C]. SSE wind to around 9 mph [15 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 78°F [26°C] with humidity of 95%. Pressure around 29.46 in [997.7 mb]. UV Index: 7.8. Chance of precipitation 10% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 78°F [25°C]. SSE wind to around 9 mph [15 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 10% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 103°F [39°C]. S wind to around 12 mph [19 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 78°F [26°C] with humidity of 89%. Pressure around 29.46 in [997.7 mb]. UV Index: 7.85. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 79°F [26°C]. S wind to around 12 mph [19 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Tuesday Thunderstorm with a high near 105°F [41°C]. NNW wind to around 12 mph [19 kph], with gusts to near 29 mph [46 kph]. Dewpoint near 78°F [26°C] with humidity of 92%. Pressure around 29.46 in [997.7 mb]. UV Index: 7.65. Chance of precipitation 6% with QPF of 0.12 in [3.1 mm]. Tuesday Night Thunderstorm with a low around 77°F [25°C]. NNW wind to around 12 mph [19 kph], with gusts to near 29 mph [46 kph]. Chance of precipitation 6% with QPF of 0.12 in [3.1 mm]. Wednesday Overcast with a high near 91°F [33°C]. ENE wind to around 9 mph [15 kph], with gusts to near 24 mph [39 kph]. Dewpoint near 78°F [26°C] with humidity of 86%. Pressure around 29.46 in [997.7 mb]. UV Index: 7.75. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 76°F [25°C]. ENE wind to around 9 mph [15 kph], with gusts to near 24 mph [39 kph]. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Thursday Light Drizzle with a high near 87°F [31°C]. ESE wind to around 8 mph [12 kph], with gusts to near 15 mph [25 kph]. Dewpoint near 78°F [26°C] with humidity of 85%. Pressure around 29.46 in [997.7 mb]. UV Index: 6.85. Chance of precipitation 3% with QPF of 0.00 in [0.1 mm]. Thursday Night Light Drizzle with a low around 71°F [21°C]. ESE wind to around 8 mph [12 kph], with gusts to near 15 mph [25 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.1 mm]. Friday Light Drizzle with a high near 87°F [31°C]. SE wind to around 7 mph [11 kph], with gusts to near 14 mph [22 kph]. Dewpoint near 78°F [26°C] with humidity of 78%. Pressure around 29.46 in [997.7 mb]. UV Index: 7.15. Chance of precipitation 18% with QPF of 0.02 in [0.5 mm]. Friday Night Light Drizzle with a low around 72°F [22°C]. SE wind to around 7 mph [11 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 18% with QPF of 0.02 in [0.5 mm].

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7 Day and Night - QPF Forecast for East Saint Louis, IL

Tonight: 1.4 mm | 0.06 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: 3.1 mm | 0.12 in

Tuesday Night: 3.1 mm | 0.12 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

Thursday: 0.1 mm | 0.00 in

Thursday Night: 0.1 mm | 0.00 in

Friday: 0.5 mm | 0.02 in

Friday Night: 0.5 mm | 0.02 in

7 Day and Night - Maximum Wind Speed Forecast for East Saint Louis, IL

Tonight: SSE @ 12 kph | 7 mph

Sunday: SSE @ 15 kph | 9 mph

Sunday Night: SSE @ 15 kph | 9 mph

Monday: S @ 19 kph | 12 mph

Monday Night: S @ 19 kph | 12 mph

Tuesday: NNW @ 19 kph | 12 mph

Tuesday Night: NNW @ 19 kph | 12 mph

Wednesday: ENE @ 15 kph | 9 mph

Wednesday Night: ENE @ 15 kph | 9 mph

Thursday: ESE @ 12 kph | 8 mph

Thursday Night: ESE @ 12 kph | 8 mph

Friday: SE @ 11 kph | 7 mph

Friday Night: SE @ 11 kph | 7 mph

7 Day and Night - Maximum Humidity Forecast for East Saint Louis, IL

Tonight: 100 %

Sunday: 95 %

Sunday Night: 95 %

Monday: 89 %

Monday Night: 89 %

Tuesday: 92 %

Tuesday Night: 92 %

Wednesday: 86 %

Wednesday Night: 86 %

Thursday: 85 %

Thursday Night: 85 %

Friday: 78 %

Friday Night: 78 %

7 Day and Night - Snowfall Totals Forecast for East Saint Louis, IL

Tonight: 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

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

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