Jerseyville, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Partly Cloudy 78°F 26°C Heat Index: 78°F	Observed at: Jerseyville, IL	Elevation: 653 ft | 199 m
	Last Updated: July 16, 10:30 PM Timezone: GMT -5/-4
	Sky Conditions: Partly Cloudy	Temperature: 78°F | 26°C
	Pressure: 29.33 in | 993.2 mb	Dewpoint: 74°F | 23°C
	Humidity: 87%	Wind: W 1 mph | W 2 kph
	Feels Like: 87°F | 31°C	Visibility: 30.8 mi | 49.5 km
	Lat/Long: 39.12 | -90.3283	Sunrise: 5:48 AM   Sunset: 8:26 PM

7 Day Graphical Forecast

Valid: 10:40 PM 7/16/2026

Tonight Light Drizzle 73 °F 40% Chance Precipitation Friday Overcast 90 |73 °F 14% Chance Precipitation Saturday Mostly Clear 94 |74 °F 31% Chance Precipitation Sunday Thunderstorm with Hail 90 |72 °F 26% Chance Precipitation Monday Heavy Drizzle 95 |70 °F 6% Chance Precipitation Tuesday Overcast 92 |67 °F 9% Chance Precipitation Wednesday Overcast 71 |57 °F 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:40 PM 7/16/2026

10 PM Mostly Clear 78 °F 4% Chance Precipitation

11 PM Partly Cloudy 77 °F 4% Chance Precipitation

12 AM Partly Cloudy 76 °F 3% Chance Precipitation

1 AM Mostly Clear 75 °F 3% Chance Precipitation

2 AM Clear 74 °F 4% Chance Precipitation

3 AM Clear 74 °F 6% Chance Precipitation

4 AM Clear 74 °F 8% Chance Precipitation

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

7 Day & Night Weather Forecast for Jerseyville, IL - (Fahrenheit & Celsius) Valid: 10:40 PM 7/16/2026 Tonight Light Drizzle with a low around 73°F [23°C]. E wind to around 8 mph [13 kph], with gusts to near 11 mph [18 kph]. Chance of precipitation 40% with QPF of 0.03 in [0.8 mm]. Friday Overcast with a high near 90°F [32°C]. W wind to around 11 mph [18 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 74°F [23°C] with humidity of 95%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.75. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. W wind to around 11 mph [18 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Saturday Mostly Clear with a high near 94°F [34°C]. W wind to around 14 mph [23 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 74°F [23°C] with humidity of 81%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.8. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Saturday Night Mostly Clear with a low around 74°F [24°C]. W wind to around 14 mph [23 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Sunday Thunderstorm with Hail with a high near 90°F [32°C]. NE wind to around 10 mph [17 kph], with gusts to near 21 mph [34 kph]. Dewpoint near 74°F [23°C] with humidity of 96%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.8. Chance of precipitation 26% with QPF of 0.59 in [15.1 mm]. Sunday Night Thunderstorm with Hail with a low around 72°F [22°C]. NE wind to around 10 mph [17 kph], with gusts to near 21 mph [34 kph]. Chance of precipitation 26% with QPF of 0.59 in [15.1 mm]. Monday Heavy Drizzle with a high near 95°F [35°C]. S wind to around 8 mph [13 kph], with gusts to near 17 mph [28 kph]. Dewpoint near 74°F [23°C] with humidity of 98%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.75. Chance of precipitation 6% with QPF of 0.07 in [1.8 mm]. Monday Night Heavy Drizzle with a low around 70°F [21°C]. S wind to around 8 mph [13 kph], with gusts to near 17 mph [28 kph]. Chance of precipitation 6% with QPF of 0.07 in [1.8 mm]. Tuesday Overcast with a high near 92°F [33°C]. WNW wind to around 21 mph [33 kph], with gusts to near 37 mph [59 kph]. Dewpoint near 74°F [23°C] with humidity of 78%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.6. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 67°F [19°C]. WNW wind to around 21 mph [33 kph], with gusts to near 37 mph [59 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 71°F [22°C]. NNE wind to around 13 mph [20 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 74°F [23°C] with humidity of 91%. Pressure around 29.33 in [993.2 mb]. UV Index: 7.15. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 57°F [14°C]. NNE wind to around 13 mph [20 kph], with gusts to near 28 mph [45 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 Jerseyville, IL

Tonight: 0.8 mm | 0.03 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: 15.1 mm | 0.59 in

Sunday Night: 15.1 mm | 0.59 in

Monday: 1.8 mm | 0.07 in

Monday Night: 1.8 mm | 0.07 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 Jerseyville, IL

Tonight: E @ 13 kph | 8 mph

Friday: W @ 18 kph | 11 mph

Friday Night: W @ 18 kph | 11 mph

Saturday: W @ 23 kph | 14 mph

Saturday Night: W @ 23 kph | 14 mph

Sunday: NE @ 17 kph | 10 mph

Sunday Night: NE @ 17 kph | 10 mph

Monday: S @ 13 kph | 8 mph

Monday Night: S @ 13 kph | 8 mph

Tuesday: WNW @ 33 kph | 21 mph

Tuesday Night: WNW @ 33 kph | 21 mph

Wednesday: NNE @ 20 kph | 13 mph

Wednesday Night: NNE @ 20 kph | 13 mph

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

Tonight: 91 %

Friday: 95 %

Friday Night: 95 %

Saturday: 81 %

Saturday Night: 81 %

Sunday: 96 %

Sunday Night: 96 %

Monday: 98 %

Monday Night: 98 %

Tuesday: 78 %

Tuesday Night: 78 %

Wednesday: 91 %

Wednesday Night: 91 %

7 Day and Night - Snowfall Totals Forecast for Jerseyville, 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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