Aviston, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 81°F 27°C Heat Index: 87°F	Observed at: Aviston, IL	Elevation: 559 ft | 170 m
	Last Updated: July 25, 7:45 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 81°F | 27°C
	Pressure: 29.42 in | 996.4 mb	Dewpoint: 76°F | 24°C
	Humidity: 84%	Wind: E 5 mph | E 8 kph
	Feels Like: 90°F | 32°C	Visibility: 33.6 mi | 54.1 km
	Lat/Long: 38.6067 | -89.6075	Sunrise: 5:54 AM   Sunset: 8:15 PM

7 Day Graphical Forecast

Valid: 6:31 PM 7/29/2026

Today Heavy Rain 85 |67 °F 30 |19 °C 63% Chance Precipitation Sunday Heavy Rain 98 |74 °F 37 |23 °C 12% Chance Precipitation Monday Overcast 92 |76 °F 33 |24 °C 7% Chance Precipitation Tuesday Light Drizzle 95 |78 °F 35 |25 °C 16% Chance Precipitation Wednesday Overcast 86 |72 °F 30 |22 °C 16% Chance Precipitation Thursday Overcast 83 |66 °F 29 |19 °C 3% Chance Precipitation Friday Drizzle 84 |68 °F 29 |20 °C 19% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:31 PM 7/29/2026

6 PM Clear 84 °F 1% Chance Precipitation

7 PM Clear 81 °F 1% Chance Precipitation

8 PM Clear 77 °F 1% Chance Precipitation

9 PM Clear 75 °F 1% Chance Precipitation

10 PM Clear 73 °F 1% Chance Precipitation

11 PM Clear 72 °F 1% Chance Precipitation

12 AM Clear 71 °F 1% Chance Precipitation

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

7 Day & Night Weather Forecast for Aviston, IL - (Fahrenheit & Celsius) Valid: 6:31 PM 7/29/2026 Today Heavy Rain with a high near 85°F [30°C]. SE wind to around 10 mph [17 kph], with gusts to near 20 mph [31 kph]. Dewpoint near 76°F [24°C] with humidity of 100%. Pressure around 29.42 in [996.4 mb]. UV Index: 6.65. Chance of precipitation 63% with QPF of 0.98 in [24.8 mm]. Tonight Heavy Rain with a low around 67°F [19°C]. SE wind to around 10 mph [17 kph], with gusts to near 20 mph [31 kph]. Chance of precipitation 63% with QPF of 0.98 in [24.8 mm]. Sunday Heavy Rain with a high near 98°F [37°C]. S wind to around 29 mph [47 kph], with gusts to near 48 mph [77 kph]. Dewpoint near 76°F [24°C] with humidity of 97%. Pressure around 29.42 in [996.4 mb]. UV Index: 7.6. Chance of precipitation 12% with QPF of 4.28 in [108.7 mm]. Sunday Night Heavy Rain with a low around 74°F [23°C]. S wind to around 29 mph [47 kph], with gusts to near 48 mph [77 kph]. Chance of precipitation 12% with QPF of 4.28 in [108.7 mm]. Monday Overcast with a high near 92°F [33°C]. SSE wind to around 19 mph [31 kph], with gusts to near 30 mph [47 kph]. Dewpoint near 76°F [24°C] with humidity of 86%. Pressure around 29.42 in [996.4 mb]. UV Index: 7.8. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 76°F [24°C]. SSE wind to around 19 mph [31 kph], with gusts to near 30 mph [47 kph]. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Tuesday Light Drizzle with a high near 95°F [35°C]. NW wind to around 15 mph [23 kph], with gusts to near 33 mph [54 kph]. Dewpoint near 76°F [24°C] with humidity of 94%. Pressure around 29.42 in [996.4 mb]. UV Index: 7.65. Chance of precipitation 16% with QPF of 0.01 in [0.2 mm]. Tuesday Night Light Drizzle with a low around 78°F [25°C]. NW wind to around 15 mph [23 kph], with gusts to near 33 mph [54 kph]. Chance of precipitation 16% with QPF of 0.01 in [0.2 mm]. Wednesday Overcast with a high near 86°F [30°C]. NE wind to around 8 mph [14 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 76°F [24°C] with humidity of 97%. Pressure around 29.42 in [996.4 mb]. UV Index: 7.7. Chance of precipitation 16% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 72°F [22°C]. NE wind to around 8 mph [14 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 16% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 83°F [29°C]. ESE wind to around 8 mph [14 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 76°F [24°C] with humidity of 94%. Pressure around 29.42 in [996.4 mb]. UV Index: 6.85. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 66°F [19°C]. ESE wind to around 8 mph [14 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Friday Drizzle with a high near 84°F [29°C]. SE wind to around 7 mph [12 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 76°F [24°C] with humidity of 93%. Pressure around 29.42 in [996.4 mb]. UV Index: 7.65. Chance of precipitation 19% with QPF of 0.13 in [3.3 mm]. Friday Night Drizzle with a low around 68°F [20°C]. SE wind to around 7 mph [12 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 19% with QPF of 0.13 in [3.3 mm].

---

7 Day and Night - QPF Forecast for Aviston, IL

Today: 24.8 mm | 0.98 in

Tonight: 24.8 mm | 0.98 in

Sunday: 108.7 mm | 4.28 in

Sunday Night: 108.7 mm | 4.28 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.2 mm | 0.01 in

Tuesday Night: 0.2 mm | 0.01 in

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 3.3 mm | 0.13 in

Friday Night: 3.3 mm | 0.13 in

7 Day and Night - Maximum Wind Speed Forecast for Aviston, IL

Today: SE @ 17 kph | 10 mph

Tonight: SE @ 17 kph | 10 mph

Sunday: S @ 47 kph | 29 mph

Sunday Night: S @ 47 kph | 29 mph

Monday: SSE @ 31 kph | 19 mph

Monday Night: SSE @ 31 kph | 19 mph

Tuesday: NW @ 23 kph | 15 mph

Tuesday Night: NW @ 23 kph | 15 mph

Wednesday: NE @ 14 kph | 8 mph

Wednesday Night: NE @ 14 kph | 8 mph

Thursday: ESE @ 14 kph | 8 mph

Thursday Night: ESE @ 14 kph | 8 mph

Friday: SE @ 12 kph | 7 mph

Friday Night: SE @ 12 kph | 7 mph

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

Today: 100 %

Tonight: 100 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 86 %

Monday Night: 86 %

Tuesday: 94 %

Tuesday Night: 94 %

Wednesday: 97 %

Wednesday Night: 97 %

Thursday: 94 %

Thursday Night: 94 %

Friday: 93 %

Friday Night: 93 %

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

Today: 0.0 cm | 0.00 in

Tonight: 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

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

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