Mendota, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Overcast 79°F 26°C Heat Index: 79°F	Observed at: Mendota, IL	Elevation: 941 ft | 287 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Overcast	Temperature: 79°F | 26°C
	Pressure: 29.23 in | 990 mb	Dewpoint: 73°F | 23°C
	Humidity: 81%	Wind: E 7 mph | E 11 kph
	Feels Like: 86°F | 30°C	Visibility: 35.3 mi | 56.8 km
	Lat/Long: 41.5472 | -89.1175	Sunrise: 5:36 AM   Sunset: 8:28 PM

7 Day Graphical Forecast

Valid: 10:26 PM 7/16/2026

Tonight Overcast 72 °F 13% Chance Precipitation Friday Overcast 91 |72 °F 32% Chance Precipitation Saturday Overcast 88 |71 °F 38% Chance Precipitation Sunday Overcast 80 |63 °F 1% Chance Precipitation Monday Overcast 84 |64 °F 36% Chance Precipitation Tuesday Overcast 82 |63 °F 36% Chance Precipitation Wednesday Overcast 70 |48 °F 3% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:26 PM 7/16/2026

10 PM Overcast 79 °F 10% Chance Precipitation

11 PM Overcast 79 °F 13% Chance Precipitation

12 AM Mostly Clear 77 °F 5% Chance Precipitation

1 AM Clear 76 °F 5% Chance Precipitation

2 AM Clear 74 °F 2% Chance Precipitation

3 AM Clear 73 °F 5% Chance Precipitation

4 AM Clear 73 °F 3% Chance Precipitation

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

7 Day & Night Weather Forecast for Mendota, IL - (Fahrenheit & Celsius) Valid: 10:26 PM 7/16/2026 Tonight Overcast with a low around 72°F [22°C]. N wind to around 8 mph [12 kph], with gusts to near 15 mph [23 kph]. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 91°F [33°C]. SW wind to around 12 mph [20 kph], with gusts to near 19 mph [30 kph]. Dewpoint near 73°F [23°C] with humidity of 87%. Pressure around 29.23 in [990 mb]. UV Index: 7.55. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 72°F [22°C]. SW wind to around 12 mph [20 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 88°F [31°C]. WNW wind to around 15 mph [24 kph], with gusts to near 32 mph [52 kph]. Dewpoint near 73°F [23°C] with humidity of 88%. Pressure around 29.23 in [990 mb]. UV Index: 7.5. Chance of precipitation 38% with QPF of 0.03 in [0.7 mm]. Saturday Night Overcast with a low around 71°F [21°C]. WNW wind to around 15 mph [24 kph], with gusts to near 32 mph [52 kph]. Chance of precipitation 38% with QPF of 0.03 in [0.7 mm]. Sunday Overcast with a high near 80°F [27°C]. E wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Dewpoint near 73°F [23°C] with humidity of 96%. Pressure around 29.23 in [990 mb]. UV Index: 7.55. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 63°F [17°C]. E wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Chance of precipitation 1% 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 27 mph [43 kph]. Dewpoint near 73°F [23°C] with humidity of 95%. Pressure around 29.23 in [990 mb]. UV Index: 6.85. Chance of precipitation 36% 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 27 mph [43 kph]. Chance of precipitation 36% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 82°F [28°C]. NW wind to around 17 mph [28 kph], with gusts to near 34 mph [54 kph]. Dewpoint near 73°F [23°C] with humidity of 87%. Pressure around 29.23 in [990 mb]. UV Index: 6.9. Chance of precipitation 36% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 63°F [17°C]. NW wind to around 17 mph [28 kph], with gusts to near 34 mph [54 kph]. Chance of precipitation 36% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 70°F [21°C]. N wind to around 17 mph [27 kph], with gusts to near 30 mph [48 kph]. Dewpoint near 73°F [23°C] with humidity of 86%. Pressure around 29.23 in [990 mb]. UV Index: 7.35. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 48°F [9°C]. N wind to around 17 mph [27 kph], with gusts to near 30 mph [48 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 Mendota, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.7 mm | 0.03 in

Saturday Night: 0.7 mm | 0.03 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 Mendota, IL

Tonight: N @ 12 kph | 8 mph

Friday: SW @ 20 kph | 12 mph

Friday Night: SW @ 20 kph | 12 mph

Saturday: WNW @ 24 kph | 15 mph

Saturday Night: WNW @ 24 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: NW @ 28 kph | 17 mph

Tuesday Night: NW @ 28 kph | 17 mph

Wednesday: N @ 27 kph | 17 mph

Wednesday Night: N @ 27 kph | 17 mph

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

Tonight: 96 %

Friday: 87 %

Friday Night: 87 %

Saturday: 88 %

Saturday Night: 88 %

Sunday: 96 %

Sunday Night: 96 %

Monday: 95 %

Monday Night: 95 %

Tuesday: 87 %

Tuesday Night: 87 %

Wednesday: 86 %

Wednesday Night: 86 %

7 Day and Night - Snowfall Totals Forecast for Mendota, 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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