Chapin, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 67°F 19°C	Observed at: Chapin, IL	Elevation: 710 ft | 216 m
	Last Updated: July 29, 5:15 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 67°F | 19°C
	Pressure: 29.26 in | 990.9 mb	Dewpoint: 64°F | 18°C
	Humidity: 89%	Wind: E 4 mph | E 6 kph
	Feels Like: 71°F | 22°C	Visibility: 29.6 mi | 47.6 km
	Lat/Long: 39.7658 | -90.3989	Sunrise: 5:58 AM   Sunset: 8:17 PM

7 Day Graphical Forecast

Valid: 5:27 AM 7/29/2026

Tonight Clear 66 °F 1% Chance Precipitation Thursday Overcast 90 |64 °F 0% Chance Precipitation Friday Showers 80 |65 °F 81% Chance Precipitation Saturday Showers 78 |65 °F 60% Chance Precipitation Sunday Light Drizzle 82 |61 °F 18% Chance Precipitation Monday Clear 82 |62 °F 17% Chance Precipitation Tuesday Clear 84 |62 °F 14% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:27 AM 7/29/2026

5 AM Clear 68 °F 1% Chance Precipitation

6 AM Clear 66 °F 1% Chance Precipitation

7 AM Clear 67 °F 1% Chance Precipitation

8 AM Clear 69 °F 1% Chance Precipitation

9 AM Clear 73 °F 0% Chance Precipitation

10 AM Clear 76 °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 Chapin, IL - (Fahrenheit & Celsius) Valid: 5:27 AM 7/29/2026 Tonight Clear with a low around 66°F [19°C]. NE wind to around 9 mph [15 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 90°F [32°C]. ESE wind to around 5 mph [9 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 64°F [18°C] with humidity of 70%. Pressure around 29.26 in [990.9 mb]. UV Index: 7.05. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 64°F [18°C]. ESE wind to around 5 mph [9 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Showers with a high near 80°F [27°C]. SE wind to around 17 mph [27 kph], with gusts to near 31 mph [49 kph]. Dewpoint near 64°F [18°C] with humidity of 96%. Pressure around 29.26 in [990.9 mb]. UV Index: 6.9. Chance of precipitation 81% with QPF of 0.93 in [23.7 mm]. Friday Night Showers with a low around 65°F [18°C]. SE wind to around 17 mph [27 kph], with gusts to near 31 mph [49 kph]. Chance of precipitation 81% with QPF of 0.93 in [23.7 mm]. Saturday Showers with a high near 78°F [25°C]. NE wind to around 17 mph [27 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 64°F [18°C] with humidity of 98%. Pressure around 29.26 in [990.9 mb]. UV Index: 6.8. Chance of precipitation 60% with QPF of 0.19 in [4.9 mm]. Saturday Night Showers with a low around 65°F [18°C]. NE wind to around 17 mph [27 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 60% with QPF of 0.19 in [4.9 mm]. Sunday Light Drizzle with a high near 82°F [28°C]. NE wind to around 9 mph [15 kph], with gusts to near 14 mph [22 kph]. Dewpoint near 64°F [18°C] with humidity of 97%. Pressure around 29.26 in [990.9 mb]. UV Index: 7.45. Chance of precipitation 18% 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 9 mph [15 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 18% 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 [12 kph], with gusts to near 10 mph [16 kph]. Dewpoint near 64°F [18°C] with humidity of 96%. Pressure around 29.26 in [990.9 mb]. UV Index: 7.45. Chance of precipitation 17% 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 [12 kph], with gusts to near 10 mph [16 kph]. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 84°F [29°C]. SE wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 64°F [18°C] with humidity of 94%. Pressure around 29.26 in [990.9 mb]. UV Index: 7.45. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 62°F [16°C]. SE wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm].

---

7 Day and Night - QPF Forecast for Chapin, IL

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 23.7 mm | 0.93 in

Friday Night: 23.7 mm | 0.93 in

Saturday: 4.9 mm | 0.19 in

Saturday Night: 4.9 mm | 0.19 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 Chapin, IL

Tonight: NE @ 15 kph | 9 mph

Thursday: ESE @ 9 kph | 5 mph

Thursday Night: ESE @ 9 kph | 5 mph

Friday: SE @ 27 kph | 17 mph

Friday Night: SE @ 27 kph | 17 mph

Saturday: NE @ 27 kph | 17 mph

Saturday Night: NE @ 27 kph | 17 mph

Sunday: NE @ 15 kph | 9 mph

Sunday Night: NE @ 15 kph | 9 mph

Monday: E @ 12 kph | 7 mph

Monday Night: E @ 12 kph | 7 mph

Tuesday: SE @ 14 kph | 9 mph

Tuesday Night: SE @ 14 kph | 9 mph

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

Tonight: 93 %

Thursday: 70 %

Thursday Night: 70 %

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 Chapin, 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

Contact Us | Mobile Private Policy | Terms & Conds | Consent Preferences | Cookie Policy Never base any life decisions on weather information from this site or anywhere over the Internet. Site is dedicated to our Lord & Savior Jesus Christ | Random Quotes of Jesus Copyright © 2026 El Dorado Weather, Inc. | Site Designed By:  Webmaster Danny