Mount Vernon, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 64°F 18°C	Observed at: Mount Vernon, IL	Elevation: 502 ft | 153 m
	Last Updated: July 29, 5:15 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 64°F | 18°C
	Pressure: 29.34 in | 993.7 mb	Dewpoint: 61°F | 16°C
	Humidity: 88%	Wind: N 6 mph | N 10 kph
	Feels Like: 65°F | 18°C	Visibility: 29.6 mi | 47.6 km
	Lat/Long: 38.3172 | -88.9031	Sunrise: 5:55 AM   Sunset: 8:08 PM

7 Day Graphical Forecast

Valid: 5:20 AM 7/29/2026

Tonight Clear 63 °F 1% Chance Precipitation Thursday Overcast 89 |63 °F 0% Chance Precipitation Friday Heavy Drizzle 82 |64 °F 69% Chance Precipitation Saturday Light Showers 70 |66 °F 69% Chance Precipitation Sunday Clear 80 |62 °F 32% Chance Precipitation Monday Clear 83 |63 °F 26% Chance Precipitation Tuesday Clear 85 |61 °F 18% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:20 AM 7/29/2026

5 AM Clear 64 °F 0% Chance Precipitation

6 AM Clear 63 °F 0% Chance Precipitation

7 AM Clear 64 °F 0% Chance Precipitation

8 AM Clear 68 °F 0% Chance Precipitation

9 AM Clear 72 °F 1% Chance Precipitation

10 AM Clear 76 °F 1% Chance Precipitation

11 AM Clear 79 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Mount Vernon, IL - (Fahrenheit & Celsius) Valid: 5:20 AM 7/29/2026 Tonight Clear with a low around 63°F [17°C]. NNE wind to around 9 mph [15 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 89°F [32°C]. ENE wind to around 7 mph [11 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 61°F [16°C] with humidity of 79%. Pressure around 29.34 in [993.7 mb]. UV Index: 7.2. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 63°F [17°C]. ENE wind to around 7 mph [11 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Heavy Drizzle with a high near 82°F [28°C]. SSE wind to around 13 mph [20 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 61°F [16°C] with humidity of 91%. Pressure around 29.34 in [993.7 mb]. UV Index: 6.6. Chance of precipitation 69% with QPF of 0.15 in [3.9 mm]. Friday Night Heavy Drizzle with a low around 64°F [18°C]. SSE wind to around 13 mph [20 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 69% with QPF of 0.15 in [3.9 mm]. Saturday Light Showers with a high near 70°F [21°C]. NE wind to around 15 mph [24 kph], with gusts to near 30 mph [48 kph]. Dewpoint near 61°F [16°C] with humidity of 99%. Pressure around 29.34 in [993.7 mb]. UV Index: 0.9. Chance of precipitation 69% with QPF of 0.14 in [3.6 mm]. Saturday Night Light Showers with a low around 66°F [19°C]. NE wind to around 15 mph [24 kph], with gusts to near 30 mph [48 kph]. Chance of precipitation 69% with QPF of 0.14 in [3.6 mm]. Sunday Clear with a high near 80°F [27°C]. NNE wind to around 14 mph [22 kph], with gusts to near 27 mph [44 kph]. Dewpoint near 61°F [16°C] with humidity of 97%. Pressure around 29.34 in [993.7 mb]. UV Index: 7.4. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 62°F [17°C]. NNE wind to around 14 mph [22 kph], with gusts to near 27 mph [44 kph]. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 83°F [28°C]. NE wind to around 8 mph [14 kph], with gusts to near 13 mph [22 kph]. Dewpoint near 61°F [16°C] with humidity of 96%. Pressure around 29.34 in [993.7 mb]. UV Index: 7.45. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 63°F [17°C]. NE wind to around 8 mph [14 kph], with gusts to near 13 mph [22 kph]. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 85°F [29°C]. E wind to around 7 mph [12 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 61°F [16°C] with humidity of 90%. Pressure around 29.34 in [993.7 mb]. UV Index: 7.45. Chance of precipitation 18% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 61°F [16°C]. E wind to around 7 mph [12 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 18% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Mount Vernon, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 3.9 mm | 0.15 in

Friday Night: 3.9 mm | 0.15 in

Saturday: 3.6 mm | 0.14 in

Saturday Night: 3.6 mm | 0.14 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 Mount Vernon, IL

Tonight: NNE @ 15 kph | 9 mph

Thursday: ENE @ 11 kph | 7 mph

Thursday Night: ENE @ 11 kph | 7 mph

Friday: SSE @ 20 kph | 13 mph

Friday Night: SSE @ 20 kph | 13 mph

Saturday: NE @ 24 kph | 15 mph

Saturday Night: NE @ 24 kph | 15 mph

Sunday: NNE @ 22 kph | 14 mph

Sunday Night: NNE @ 22 kph | 14 mph

Monday: NE @ 14 kph | 8 mph

Monday Night: NE @ 14 kph | 8 mph

Tuesday: E @ 12 kph | 7 mph

Tuesday Night: E @ 12 kph | 7 mph

7 Day and Night - Maximum Humidity Forecast for Mount Vernon, IL

Tonight: 93 %

Thursday: 79 %

Thursday Night: 79 %

Friday: 91 %

Friday Night: 91 %

Saturday: 99 %

Saturday Night: 99 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 90 %

Tuesday Night: 90 %

7 Day and Night - Snowfall Totals Forecast for Mount Vernon, 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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