Quincy, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 70°F 21°C	Observed at: Quincy, IL	Elevation: 620 ft | 189 m
	Last Updated: July 29, 6:15 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 70°F | 21°C
	Pressure: 29.34 in | 993.5 mb	Dewpoint: 68°F | 20°C
	Humidity: 92%	Wind: E 6 mph | E 10 kph
	Feels Like: 75°F | 24°C	Visibility: 26.1 mi | 42 km
	Lat/Long: 39.9356 | -91.4097	Sunrise: 6:01 AM   Sunset: 8:22 PM

7 Day Graphical Forecast

Valid: 6:25 AM 7/29/2026

Today Mostly Clear 91 |70 °F 33 |21 °C 1% Chance Precipitation Thursday Overcast 91 |67 °F 33 |19 °C 2% Chance Precipitation Friday Light Showers 86 |67 °F 30 |19 °C 86% Chance Precipitation Saturday Drizzle 80 |65 °F 26 |18 °C 56% Chance Precipitation Sunday Clear 85 |62 °F 30 |17 °C 11% Chance Precipitation Monday Clear 90 |65 °F 32 |18 °C 7% Chance Precipitation Tuesday Clear 94 |63 °F 34 |17 °C 9% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:25 AM 7/29/2026

6 AM Clear 70 °F 1% Chance Precipitation

7 AM Clear 71 °F 1% Chance Precipitation

8 AM Clear 73 °F 1% Chance Precipitation

9 AM Clear 76 °F 1% Chance Precipitation

10 AM Clear 79 °F 1% Chance Precipitation

11 AM Clear 81 °F 0% Chance Precipitation

12 PM Clear 84 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Quincy, IL - (Fahrenheit & Celsius) Valid: 6:25 AM 7/29/2026 Today Mostly Clear with a high near 91°F [33°C]. E wind to around 7 mph [11 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 68°F [20°C] with humidity of 92%. Pressure around 29.34 in [993.5 mb]. UV Index: 7.65. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Tonight Mostly Clear with a low around 70°F [21°C]. E wind to around 7 mph [11 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 91°F [33°C]. SE wind to around 9 mph [15 kph], with gusts to near 18 mph [30 kph]. Dewpoint near 68°F [20°C] with humidity of 63%. Pressure around 29.34 in [993.5 mb]. UV Index: 7.6. Chance of precipitation 2% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 67°F [19°C]. SE wind to around 9 mph [15 kph], with gusts to near 18 mph [30 kph]. Chance of precipitation 2% with QPF of 0.00 in [0.0 mm]. Friday Light Showers with a high near 86°F [30°C]. SE wind to around 18 mph [29 kph], with gusts to near 33 mph [53 kph]. Dewpoint near 68°F [20°C] with humidity of 98%. Pressure around 29.34 in [993.5 mb]. UV Index: 7. Chance of precipitation 86% with QPF of 0.46 in [11.7 mm]. Friday Night Light Showers with a low around 67°F [19°C]. SE wind to around 18 mph [29 kph], with gusts to near 33 mph [53 kph]. Chance of precipitation 86% with QPF of 0.46 in [11.7 mm]. Saturday Drizzle with a high near 80°F [26°C]. NNE wind to around 17 mph [27 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 68°F [20°C] with humidity of 99%. Pressure around 29.34 in [993.5 mb]. UV Index: 6.4. Chance of precipitation 56% with QPF of 0.08 in [1.9 mm]. Saturday Night Drizzle with a low around 65°F [18°C]. NNE wind to around 17 mph [27 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 56% with QPF of 0.08 in [1.9 mm]. Sunday Clear with a high near 85°F [30°C]. NE wind to around 11 mph [17 kph], with gusts to near 13 mph [21 kph]. Dewpoint near 68°F [20°C] with humidity of 95%. Pressure around 29.34 in [993.5 mb]. UV Index: 7.55. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 62°F [17°C]. NE wind to around 11 mph [17 kph], with gusts to near 13 mph [21 kph]. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 90°F [32°C]. E wind to around 11 mph [18 kph], with gusts to near 20 mph [33 kph]. Dewpoint near 68°F [20°C] with humidity of 95%. Pressure around 29.34 in [993.5 mb]. UV Index: 7.55. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 65°F [18°C]. E wind to around 11 mph [18 kph], with gusts to near 20 mph [33 kph]. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 94°F [34°C]. SE wind to around 9 mph [14 kph], with gusts to near 23 mph [36 kph]. Dewpoint near 68°F [20°C] with humidity of 95%. Pressure around 29.34 in [993.5 mb]. UV Index: 7.45. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 63°F [17°C]. SE wind to around 9 mph [14 kph], with gusts to near 23 mph [36 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Quincy, IL

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 11.7 mm | 0.46 in

Friday Night: 11.7 mm | 0.46 in

Saturday: 1.9 mm | 0.08 in

Saturday Night: 1.9 mm | 0.08 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 Quincy, IL

Today: E @ 11 kph | 7 mph

Tonight: E @ 11 kph | 7 mph

Thursday: SE @ 15 kph | 9 mph

Thursday Night: SE @ 15 kph | 9 mph

Friday: SE @ 29 kph | 18 mph

Friday Night: SE @ 29 kph | 18 mph

Saturday: NNE @ 27 kph | 17 mph

Saturday Night: NNE @ 27 kph | 17 mph

Sunday: NE @ 17 kph | 11 mph

Sunday Night: NE @ 17 kph | 11 mph

Monday: E @ 18 kph | 11 mph

Monday Night: E @ 18 kph | 11 mph

Tuesday: SE @ 14 kph | 9 mph

Tuesday Night: SE @ 14 kph | 9 mph

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

Today: 92 %

Tonight: 92 %

Thursday: 63 %

Thursday Night: 63 %

Friday: 98 %

Friday Night: 98 %

Saturday: 99 %

Saturday Night: 99 %

Sunday: 95 %

Sunday Night: 95 %

Monday: 95 %

Monday Night: 95 %

Tuesday: 95 %

Tuesday Night: 95 %

7 Day and Night - Snowfall Totals Forecast for Quincy, IL

Today: 0.0 cm | 0.00 in

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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