Joliet, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Partly Cloudy 79°F 26°C Heat Index: 79°F	Observed at: Joliet, IL	Elevation: 551 ft | 168 m
	Last Updated: July 16, 10:30 PM Timezone: GMT -5/-4
	Sky Conditions: Partly Cloudy	Temperature: 79°F | 26°C
	Pressure: 29.43 in | 996.7 mb	Dewpoint: 67°F | 19°C
	Humidity: 67%	Wind: N 3 mph | N 5 kph
	Feels Like: 84°F | 29°C	Visibility: 46.3 mi | 74.5 km
	Lat/Long: 41.525 | -88.0817	Sunrise: 5:32 AM   Sunset: 8:24 PM

7 Day Graphical Forecast

Valid: 10:31 PM 7/16/2026

Tonight Overcast 75 °F 24% Chance Precipitation Friday Overcast 93 |73 °F 24% Chance Precipitation Saturday Light Drizzle 92 |71 °F 72% Chance Precipitation Sunday Overcast 85 |67 °F 8% Chance Precipitation Monday Overcast 84 |64 °F 41% Chance Precipitation Tuesday Overcast 84 |65 °F 41% Chance Precipitation Wednesday Overcast 75 |54 °F 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:31 PM 7/16/2026

10 PM Clear 80 °F 4% Chance Precipitation

11 PM Overcast 79 °F 7% Chance Precipitation

12 AM Partly Cloudy 76 °F 5% Chance Precipitation

1 AM Clear 75 °F 3% Chance Precipitation

2 AM Partly Cloudy 74 °F 3% Chance Precipitation

3 AM Overcast 75 °F 3% Chance Precipitation

4 AM Mostly Clear 74 °F 3% Chance Precipitation

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

7 Day & Night Weather Forecast for Joliet, IL - (Fahrenheit & Celsius) Valid: 10:31 PM 7/16/2026 Tonight Overcast with a low around 75°F [24°C]. N wind to around 8 mph [12 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 24% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 93°F [34°C]. SW wind to around 10 mph [17 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 67°F [19°C] with humidity of 89%. Pressure around 29.43 in [996.7 mb]. UV Index: 7.5. Chance of precipitation 24% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. SW wind to around 10 mph [17 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 24% with QPF of 0.00 in [0.0 mm]. Saturday Light Drizzle with a high near 92°F [33°C]. WNW wind to around 15 mph [23 kph], with gusts to near 29 mph [47 kph]. Dewpoint near 67°F [19°C] with humidity of 84%. Pressure around 29.43 in [996.7 mb]. UV Index: 7.45. Chance of precipitation 72% with QPF of 0.05 in [1.1 mm]. Saturday Night Light Drizzle with a low around 71°F [22°C]. WNW wind to around 15 mph [23 kph], with gusts to near 29 mph [47 kph]. Chance of precipitation 72% with QPF of 0.05 in [1.1 mm]. Sunday Overcast with a high near 85°F [29°C]. E wind to around 7 mph [11 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 67°F [19°C] with humidity of 87%. Pressure around 29.43 in [996.7 mb]. UV Index: 7.5. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 67°F [19°C]. E wind to around 7 mph [11 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 84°F [29°C]. S wind to around 11 mph [18 kph], with gusts to near 26 mph [41 kph]. Dewpoint near 67°F [19°C] with humidity of 96%. Pressure around 29.43 in [996.7 mb]. UV Index: 6.8. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 64°F [18°C]. S wind to around 11 mph [18 kph], with gusts to near 26 mph [41 kph]. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 84°F [29°C]. WNW wind to around 15 mph [23 kph], with gusts to near 31 mph [50 kph]. Dewpoint near 67°F [19°C] with humidity of 96%. Pressure around 29.43 in [996.7 mb]. UV Index: 7.5. 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 15 mph [23 kph], with gusts to near 31 mph [50 kph]. Chance of precipitation 41% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 75°F [24°C]. N wind to around 15 mph [24 kph], with gusts to near 25 mph [41 kph]. Dewpoint near 67°F [19°C] with humidity of 76%. Pressure around 29.43 in [996.7 mb]. UV Index: 7.3. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 54°F [12°C]. N wind to around 15 mph [24 kph], with gusts to near 25 mph [41 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Joliet, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 1.1 mm | 0.05 in

Saturday Night: 1.1 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 Joliet, IL

Tonight: N @ 12 kph | 8 mph

Friday: SW @ 17 kph | 10 mph

Friday Night: SW @ 17 kph | 10 mph

Saturday: WNW @ 23 kph | 15 mph

Saturday Night: WNW @ 23 kph | 15 mph

Sunday: E @ 11 kph | 7 mph

Sunday Night: E @ 11 kph | 7 mph

Monday: S @ 18 kph | 11 mph

Monday Night: S @ 18 kph | 11 mph

Tuesday: WNW @ 23 kph | 15 mph

Tuesday Night: WNW @ 23 kph | 15 mph

Wednesday: N @ 24 kph | 15 mph

Wednesday Night: N @ 24 kph | 15 mph

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

Tonight: 96 %

Friday: 89 %

Friday Night: 89 %

Saturday: 84 %

Saturday Night: 84 %

Sunday: 87 %

Sunday Night: 87 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 96 %

Tuesday Night: 96 %

Wednesday: 76 %

Wednesday Night: 76 %

7 Day and Night - Snowfall Totals Forecast for Joliet, 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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