Quincy, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Overcast 81°F 27°C Heat Index: 86°F	Observed at: Quincy, IL	Elevation: 620 ft | 189 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Overcast	Temperature: 81°F | 27°C
	Pressure: 29.41 in | 995.8 mb	Dewpoint: 73°F | 23°C
	Humidity: 76%	Wind: WSW 6 mph | WSW 10 kph
	Feels Like: 88°F | 31°C	Visibility: 40.4 mi | 65 km
	Lat/Long: 39.9356 | -91.4097	Sunrise: 5:50 AM   Sunset: 8:32 PM

7 Day Graphical Forecast

Valid: 10:26 PM 7/16/2026

Tonight Overcast 71 °F 8% Chance Precipitation Friday Overcast 93 |72 °F 13% Chance Precipitation Saturday Overcast 97 |75 °F 37% Chance Precipitation Sunday Thunderstorm with Hail 91 |71 °F 20% Chance Precipitation Monday Overcast 97 |72 °F 9% Chance Precipitation Tuesday Overcast 90 |67 °F 11% Chance Precipitation Wednesday Overcast 74 |55 °F 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:26 PM 7/16/2026

10 PM Overcast 81 °F 6% Chance Precipitation

11 PM Overcast 80 °F 4% Chance Precipitation

12 AM Mostly Clear 78 °F 4% Chance Precipitation

1 AM Partly Cloudy 77 °F 5% Chance Precipitation

2 AM Mostly Clear 76 °F 8% Chance Precipitation

3 AM Overcast 75 °F 6% Chance Precipitation

4 AM Mostly Clear 74 °F 7% 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: 10:26 PM 7/16/2026 Tonight Overcast with a low around 71°F [22°C]. WSW wind to around 6 mph [9 kph], with gusts to near 13 mph [22 kph]. Chance of precipitation 8% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 93°F [34°C]. WSW wind to around 11 mph [17 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 73°F [23°C] with humidity of 93%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.8. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 72°F [22°C]. WSW wind to around 11 mph [17 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 13% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 97°F [36°C]. WSW wind to around 12 mph [19 kph], with gusts to near 27 mph [43 kph]. Dewpoint near 73°F [23°C] with humidity of 84%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.85. Chance of precipitation 37% with QPF of 0.00 in [0.0 mm]. Saturday Night Overcast with a low around 75°F [24°C]. WSW wind to around 12 mph [19 kph], with gusts to near 27 mph [43 kph]. Chance of precipitation 37% with QPF of 0.00 in [0.0 mm]. Sunday Thunderstorm with Hail with a high near 91°F [33°C]. ENE wind to around 10 mph [16 kph], with gusts to near 21 mph [34 kph]. Dewpoint near 73°F [23°C] with humidity of 97%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.7. Chance of precipitation 20% with QPF of 0.68 in [17.3 mm]. Sunday Night Thunderstorm with Hail with a low around 71°F [21°C]. ENE wind to around 10 mph [16 kph], with gusts to near 21 mph [34 kph]. Chance of precipitation 20% with QPF of 0.68 in [17.3 mm]. Monday Overcast with a high near 97°F [36°C]. S wind to around 12 mph [19 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 73°F [23°C] with humidity of 98%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.9. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 72°F [22°C]. S wind to around 12 mph [19 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 90°F [32°C]. NW wind to around 22 mph [36 kph], with gusts to near 36 mph [58 kph]. Dewpoint near 73°F [23°C] with humidity of 79%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.25. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 67°F [19°C]. NW wind to around 22 mph [36 kph], with gusts to near 36 mph [58 kph]. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 74°F [24°C]. NNE wind to around 12 mph [20 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 73°F [23°C] with humidity of 86%. Pressure around 29.41 in [995.8 mb]. UV Index: 7.55. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 55°F [13°C]. NNE wind to around 12 mph [20 kph], with gusts to near 26 mph [42 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 Quincy, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.0 mm | 0.00 in

Saturday Night: 0.0 mm | 0.00 in

Sunday: 17.3 mm | 0.68 in

Sunday Night: 17.3 mm | 0.68 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 Quincy, IL

Tonight: WSW @ 9 kph | 6 mph

Friday: WSW @ 17 kph | 11 mph

Friday Night: WSW @ 17 kph | 11 mph

Saturday: WSW @ 19 kph | 12 mph

Saturday Night: WSW @ 19 kph | 12 mph

Sunday: ENE @ 16 kph | 10 mph

Sunday Night: ENE @ 16 kph | 10 mph

Monday: S @ 19 kph | 12 mph

Monday Night: S @ 19 kph | 12 mph

Tuesday: NW @ 36 kph | 22 mph

Tuesday Night: NW @ 36 kph | 22 mph

Wednesday: NNE @ 20 kph | 12 mph

Wednesday Night: NNE @ 20 kph | 12 mph

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

Tonight: 91 %

Friday: 93 %

Friday Night: 93 %

Saturday: 84 %

Saturday Night: 84 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 98 %

Monday Night: 98 %

Tuesday: 79 %

Tuesday Night: 79 %

Wednesday: 86 %

Wednesday Night: 86 %

7 Day and Night - Snowfall Totals Forecast for Quincy, 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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