Dennison, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 60°F 16°C	Observed at: Dennison, IL	Elevation: 670 ft | 204 m
	Last Updated: July 29, 5:15 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 60°F | 16°C
	Pressure: 29.28 in | 991.4 mb	Dewpoint: 57°F | 14°C
	Humidity: 90%	Wind: NNE 6 mph | NNE 10 kph
	Feels Like: 60°F | 16°C	Visibility: 27.9 mi | 44.9 km
	Lat/Long: 39.4608 | -87.5978	Sunrise: 5:47 AM   Sunset: 8:05 PM

7 Day Graphical Forecast

Valid: 5:22 AM 7/29/2026

Tonight Clear 60 °F 0% Chance Precipitation Thursday Overcast 85 |61 °F 0% Chance Precipitation Friday Light Showers 79 |63 °F 62% Chance Precipitation Saturday Light Showers 70 |64 °F 64% Chance Precipitation Sunday Clear 80 |61 °F 31% Chance Precipitation Monday Clear 82 |61 °F 30% Chance Precipitation Tuesday Clear 83 |57 °F 22% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:22 AM 7/29/2026

5 AM Clear 60 °F 0% Chance Precipitation

6 AM Clear 60 °F 0% Chance Precipitation

7 AM Clear 61 °F 0% Chance Precipitation

8 AM Clear 65 °F 0% Chance Precipitation

9 AM Clear 69 °F 0% Chance Precipitation

10 AM Clear 73 °F 0% Chance Precipitation

11 AM Clear 77 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Dennison, IL - (Fahrenheit & Celsius) Valid: 5:22 AM 7/29/2026 Tonight Clear with a low around 60°F [15°C]. N wind to around 9 mph [14 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 85°F [29°C]. NE wind to around 5 mph [9 kph], with gusts to near 13 mph [22 kph]. Dewpoint near 57°F [14°C] with humidity of 85%. Pressure around 29.28 in [991.4 mb]. UV Index: 7.1. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 61°F [16°C]. NE wind to around 5 mph [9 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 79°F [26°C]. SSE wind to around 11 mph [17 kph], with gusts to near 18 mph [28 kph]. Dewpoint near 57°F [14°C] with humidity of 94%. Pressure around 29.28 in [991.4 mb]. UV Index: 4.5. Chance of precipitation 62% with QPF of 0.09 in [2.4 mm]. Friday Night Light Showers with a low around 63°F [17°C]. SSE wind to around 11 mph [17 kph], with gusts to near 18 mph [28 kph]. Chance of precipitation 62% with QPF of 0.09 in [2.4 mm]. Saturday Light Showers with a high near 70°F [21°C]. NE wind to around 14 mph [23 kph], with gusts to near 25 mph [41 kph]. Dewpoint near 57°F [14°C] with humidity of 98%. Pressure around 29.28 in [991.4 mb]. UV Index: 1.1. Chance of precipitation 64% with QPF of 0.48 in [12.1 mm]. Saturday Night Light Showers with a low around 64°F [18°C]. NE wind to around 14 mph [23 kph], with gusts to near 25 mph [41 kph]. Chance of precipitation 64% with QPF of 0.48 in [12.1 mm]. Sunday Clear with a high near 80°F [27°C]. NNE wind to around 14 mph [22 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 57°F [14°C] with humidity of 97%. Pressure around 29.28 in [991.4 mb]. UV Index: 7.3. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 61°F [16°C]. NNE wind to around 14 mph [22 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 82°F [28°C]. NE wind to around 8 mph [13 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 57°F [14°C] with humidity of 96%. Pressure around 29.28 in [991.4 mb]. UV Index: 7.3. Chance of precipitation 30% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 61°F [16°C]. NE wind to around 8 mph [13 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 30% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 83°F [29°C]. E wind to around 7 mph [11 kph], with gusts to near 10 mph [16 kph]. Dewpoint near 57°F [14°C] with humidity of 90%. Pressure around 29.28 in [991.4 mb]. UV Index: 7.4. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 57°F [14°C]. E wind to around 7 mph [11 kph], with gusts to near 10 mph [16 kph]. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Dennison, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 2.4 mm | 0.09 in

Friday Night: 2.4 mm | 0.09 in

Saturday: 12.1 mm | 0.48 in

Saturday Night: 12.1 mm | 0.48 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 Dennison, IL

Tonight: N @ 14 kph | 9 mph

Thursday: NE @ 9 kph | 5 mph

Thursday Night: NE @ 9 kph | 5 mph

Friday: SSE @ 17 kph | 11 mph

Friday Night: SSE @ 17 kph | 11 mph

Saturday: NE @ 23 kph | 14 mph

Saturday Night: NE @ 23 kph | 14 mph

Sunday: NNE @ 22 kph | 14 mph

Sunday Night: NNE @ 22 kph | 14 mph

Monday: NE @ 13 kph | 8 mph

Monday Night: NE @ 13 kph | 8 mph

Tuesday: E @ 11 kph | 7 mph

Tuesday Night: E @ 11 kph | 7 mph

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

Tonight: 92 %

Thursday: 85 %

Thursday Night: 85 %

Friday: 94 %

Friday Night: 94 %

Saturday: 98 %

Saturday Night: 98 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 90 %

Tuesday Night: 90 %

7 Day and Night - Snowfall Totals Forecast for Dennison, 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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