Anderson, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 78°F 26°C Heat Index: 78°F	Observed at: Anderson, IL	Elevation: 655 ft | 200 m
	Last Updated: July 25, 8:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 78°F | 26°C
	Pressure: 29.23 in | 989.9 mb	Dewpoint: 75°F | 24°C
	Humidity: 90%	Wind: SSE 5 mph | SSE 8 kph
	Feels Like: 87°F | 31°C	Visibility: 27.1 mi | 43.6 km
	Lat/Long: 39.3439 | -89.845	Sunrise: 5:53 AM   Sunset: 8:18 PM

7 Day Graphical Forecast

Valid: 11:36 AM 7/28/2026

Today Heavy Rain 83 |65 °F 28 |18 °C 52% Chance Precipitation Sunday Heavy Rain 98 |71 °F 37 |22 °C 10% Chance Precipitation Monday Overcast 92 |76 °F 33 |24 °C 9% Chance Precipitation Tuesday Overcast 93 |76 °F 34 |25 °C 4% Chance Precipitation Wednesday Overcast 85 |70 °F 29 |21 °C 4% Chance Precipitation Thursday Overcast 82 |66 °F 28 |19 °C 6% Chance Precipitation Friday Overcast 82 |70 °F 28 |21 °C 17% Chance Precipitation

7 Hour Graphical Forecast

Valid: 11:36 AM 7/28/2026

11 AM Overcast 88 °F 0% Chance Precipitation

12 PM Overcast 90 °F 0% Chance Precipitation

1 PM Overcast 92 °F 0% Chance Precipitation

2 PM Overcast 93 °F 1% Chance Precipitation

3 PM Partly Cloudy 93 °F 1% Chance Precipitation

4 PM Overcast 90 °F 1% Chance Precipitation

5 PM Overcast 87 °F 1% Chance Precipitation

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

7 Day & Night Weather Forecast for Anderson, IL - (Fahrenheit & Celsius) Valid: 11:36 AM 7/28/2026 Today Heavy Rain with a high near 83°F [28°C]. SSE wind to around 8 mph [13 kph], with gusts to near 19 mph [30 kph]. Dewpoint near 75°F [24°C] with humidity of 100%. Pressure around 29.23 in [989.9 mb]. UV Index: 5.9. Chance of precipitation 52% with QPF of 1.32 in [33.5 mm]. Tonight Heavy Rain with a low around 65°F [18°C]. SSE wind to around 8 mph [13 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 52% with QPF of 1.32 in [33.5 mm]. Sunday Heavy Rain with a high near 98°F [37°C]. SE wind to around 31 mph [49 kph], with gusts to near 44 mph [70 kph]. Dewpoint near 75°F [24°C] with humidity of 97%. Pressure around 29.23 in [989.9 mb]. UV Index: 7.5. Chance of precipitation 10% with QPF of 0.75 in [19.1 mm]. Sunday Night Heavy Rain with a low around 71°F [22°C]. SE wind to around 31 mph [49 kph], with gusts to near 44 mph [70 kph]. Chance of precipitation 10% with QPF of 0.75 in [19.1 mm]. Monday Overcast with a high near 92°F [33°C]. SSE wind to around 16 mph [26 kph], with gusts to near 30 mph [49 kph]. Dewpoint near 75°F [24°C] with humidity of 87%. Pressure around 29.23 in [989.9 mb]. UV Index: 7.75. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 76°F [24°C]. SSE wind to around 16 mph [26 kph], with gusts to near 30 mph [49 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 93°F [34°C]. NNW wind to around 11 mph [18 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 75°F [24°C] with humidity of 95%. Pressure around 29.23 in [989.9 mb]. UV Index: 7.5. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 76°F [25°C]. NNW wind to around 11 mph [18 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 85°F [29°C]. ENE wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 75°F [24°C] with humidity of 95%. Pressure around 29.23 in [989.9 mb]. UV Index: 7.65. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 70°F [21°C]. ENE wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 82°F [28°C]. SE wind to around 9 mph [14 kph], with gusts to near 13 mph [21 kph]. Dewpoint near 75°F [24°C] with humidity of 93%. Pressure around 29.23 in [989.9 mb]. UV Index: 6.55. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 66°F [19°C]. SE wind to around 9 mph [14 kph], with gusts to near 13 mph [21 kph]. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 82°F [28°C]. SE wind to around 7 mph [12 kph], with gusts to near 13 mph [20 kph]. Dewpoint near 75°F [24°C] with humidity of 88%. Pressure around 29.23 in [989.9 mb]. UV Index: 6.85. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 70°F [21°C]. SE wind to around 7 mph [12 kph], with gusts to near 13 mph [20 kph]. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Anderson, IL

Today: 33.5 mm | 1.32 in

Tonight: 33.5 mm | 1.32 in

Sunday: 19.1 mm | 0.75 in

Sunday Night: 19.1 mm | 0.75 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

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

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

Today: SSE @ 13 kph | 8 mph

Tonight: SSE @ 13 kph | 8 mph

Sunday: SE @ 49 kph | 31 mph

Sunday Night: SE @ 49 kph | 31 mph

Monday: SSE @ 26 kph | 16 mph

Monday Night: SSE @ 26 kph | 16 mph

Tuesday: NNW @ 18 kph | 11 mph

Tuesday Night: NNW @ 18 kph | 11 mph

Wednesday: ENE @ 15 kph | 9 mph

Wednesday Night: ENE @ 15 kph | 9 mph

Thursday: SE @ 14 kph | 9 mph

Thursday Night: SE @ 14 kph | 9 mph

Friday: SE @ 12 kph | 7 mph

Friday Night: SE @ 12 kph | 7 mph

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

Today: 100 %

Tonight: 100 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 87 %

Monday Night: 87 %

Tuesday: 95 %

Tuesday Night: 95 %

Wednesday: 95 %

Wednesday Night: 95 %

Thursday: 93 %

Thursday Night: 93 %

Friday: 88 %

Friday Night: 88 %

7 Day and Night - Snowfall Totals Forecast for Anderson, 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

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