Jacksonville, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 66°F 19°C	Observed at: Jacksonville, IL	Elevation: 620 ft | 189 m
	Last Updated: July 29, 5:15 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 66°F | 19°C
	Pressure: 29.27 in | 991.2 mb	Dewpoint: 62°F | 17°C
	Humidity: 87%	Wind: E 3 mph | E 5 kph
	Feels Like: 69°F | 21°C	Visibility: 30.6 mi | 49.2 km
	Lat/Long: 39.7339 | -90.2289	Sunrise: 5:57 AM   Sunset: 8:17 PM

7 Day Graphical Forecast

Valid: 5:27 AM 7/29/2026

Tonight Partly Cloudy 65 °F 1% Chance Precipitation Thursday Overcast 91 |63 °F 0% Chance Precipitation Friday Showers 79 |65 °F 76% Chance Precipitation Saturday Showers 77 |65 °F 64% Chance Precipitation Sunday Light Drizzle 82 |61 °F 17% Chance Precipitation Monday Clear 82 |62 °F 19% Chance Precipitation Tuesday Clear 84 |61 °F 15% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:27 AM 7/29/2026

5 AM Clear 67 °F 0% Chance Precipitation

6 AM Clear 65 °F 1% Chance Precipitation

7 AM Clear 65 °F 1% Chance Precipitation

8 AM Clear 69 °F 1% Chance Precipitation

9 AM Clear 73 °F 0% Chance Precipitation

10 AM Clear 77 °F 0% Chance Precipitation

11 AM Clear 80 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Jacksonville, IL - (Fahrenheit & Celsius) Valid: 5:27 AM 7/29/2026 Tonight Partly Cloudy with a low around 65°F [18°C]. NE wind to around 8 mph [14 kph], with gusts to near 13 mph [21 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 91°F [33°C]. ESE wind to around 5 mph [8 kph], with gusts to near 16 mph [25 kph]. Dewpoint near 62°F [17°C] with humidity of 74%. Pressure around 29.27 in [991.2 mb]. UV Index: 7.25. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 63°F [17°C]. ESE wind to around 5 mph [8 kph], with gusts to near 16 mph [25 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Showers with a high near 79°F [26°C]. SE wind to around 17 mph [27 kph], with gusts to near 30 mph [47 kph]. Dewpoint near 62°F [17°C] with humidity of 96%. Pressure around 29.27 in [991.2 mb]. UV Index: 6.75. Chance of precipitation 76% with QPF of 0.91 in [23.1 mm]. Friday Night Showers with a low around 65°F [18°C]. SE wind to around 17 mph [27 kph], with gusts to near 30 mph [47 kph]. Chance of precipitation 76% with QPF of 0.91 in [23.1 mm]. Saturday Showers with a high near 77°F [25°C]. NE wind to around 17 mph [28 kph], with gusts to near 26 mph [41 kph]. Dewpoint near 62°F [17°C] with humidity of 98%. Pressure around 29.27 in [991.2 mb]. UV Index: 6.05. Chance of precipitation 64% with QPF of 0.15 in [3.7 mm]. Saturday Night Showers with a low around 65°F [18°C]. NE wind to around 17 mph [28 kph], with gusts to near 26 mph [41 kph]. Chance of precipitation 64% with QPF of 0.15 in [3.7 mm]. Sunday Light Drizzle with a high near 82°F [28°C]. NE wind to around 10 mph [15 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 62°F [17°C] with humidity of 97%. Pressure around 29.27 in [991.2 mb]. UV Index: 7.4. Chance of precipitation 17% with QPF of 0.01 in [0.3 mm]. Sunday Night Light Drizzle with a low around 61°F [16°C]. NE wind to around 10 mph [15 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 17% with QPF of 0.01 in [0.3 mm]. Monday Clear with a high near 82°F [28°C]. E wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 62°F [17°C] with humidity of 96%. Pressure around 29.27 in [991.2 mb]. UV Index: 7.45. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 62°F [17°C]. E wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 84°F [29°C]. SE wind to around 8 mph [14 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 62°F [17°C] with humidity of 94%. Pressure around 29.27 in [991.2 mb]. UV Index: 7.45. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 61°F [16°C]. SE wind to around 8 mph [14 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Jacksonville, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 23.1 mm | 0.91 in

Friday Night: 23.1 mm | 0.91 in

Saturday: 3.7 mm | 0.15 in

Saturday Night: 3.7 mm | 0.15 in

Sunday: 0.3 mm | 0.01 in

Sunday Night: 0.3 mm | 0.01 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 Jacksonville, IL

Tonight: NE @ 14 kph | 8 mph

Thursday: ESE @ 8 kph | 5 mph

Thursday Night: ESE @ 8 kph | 5 mph

Friday: SE @ 27 kph | 17 mph

Friday Night: SE @ 27 kph | 17 mph

Saturday: NE @ 28 kph | 17 mph

Saturday Night: NE @ 28 kph | 17 mph

Sunday: NE @ 15 kph | 10 mph

Sunday Night: NE @ 15 kph | 10 mph

Monday: E @ 11 kph | 7 mph

Monday Night: E @ 11 kph | 7 mph

Tuesday: SE @ 14 kph | 8 mph

Tuesday Night: SE @ 14 kph | 8 mph

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

Tonight: 92 %

Thursday: 74 %

Thursday Night: 74 %

Friday: 96 %

Friday Night: 96 %

Saturday: 98 %

Saturday Night: 98 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 96 %

Monday Night: 96 %

Tuesday: 94 %

Tuesday Night: 94 %

7 Day and Night - Snowfall Totals Forecast for Jacksonville, 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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