Lyndon, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 80°F 27°C Heat Index: 84°F	Observed at: Lyndon, IL	Elevation: 963 ft | 294 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 80°F | 27°C
	Pressure: 29.36 in | 994.2 mb	Dewpoint: 73°F | 23°C
	Humidity: 80%	Wind: ESE 4 mph | ESE 6 kph
	Feels Like: 88°F | 31°C	Visibility: 36.9 mi | 59.4 km
	Lat/Long: 41.7175 | -89.9258	Sunrise: 5:39 AM   Sunset: 8:32 PM

7 Day Graphical Forecast

Valid: 10:24 PM 7/16/2026

Tonight Partly Cloudy 71 °F 5% Chance Precipitation Friday Overcast 92 |71 °F 22% Chance Precipitation Saturday Overcast 90 |72 °F 15% Chance Precipitation Sunday Overcast 82 |65 °F 1% Chance Precipitation Monday Light Drizzle 84 |67 °F 23% Chance Precipitation Tuesday Overcast 84 |62 °F 20% Chance Precipitation Wednesday Overcast 72 |48 °F 3% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:24 PM 7/16/2026

10 PM Clear 80 °F 1% Chance Precipitation

11 PM Clear 79 °F 5% Chance Precipitation

12 AM Clear 77 °F 3% Chance Precipitation

1 AM Clear 75 °F 1% Chance Precipitation

2 AM Clear 75 °F 1% Chance Precipitation

3 AM Clear 74 °F 1% Chance Precipitation

4 AM Clear 73 °F 2% Chance Precipitation

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

7 Day & Night Weather Forecast for Lyndon, IL - (Fahrenheit & Celsius) Valid: 10:24 PM 7/16/2026 Tonight Partly Cloudy with a low around 71°F [22°C]. SSE wind to around 6 mph [9 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 92°F [33°C]. SW wind to around 12 mph [20 kph], with gusts to near 19 mph [31 kph]. Dewpoint near 73°F [23°C] with humidity of 91%. Pressure around 29.36 in [994.2 mb]. UV Index: 7.5. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 71°F [22°C]. SW wind to around 12 mph [20 kph], with gusts to near 19 mph [31 kph]. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 90°F [32°C]. WNW wind to around 13 mph [21 kph], with gusts to near 27 mph [44 kph]. Dewpoint near 73°F [23°C] with humidity of 85%. Pressure around 29.36 in [994.2 mb]. UV Index: 7.45. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Saturday Night Overcast with a low around 72°F [22°C]. WNW wind to around 13 mph [21 kph], with gusts to near 27 mph [44 kph]. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Sunday Overcast with a high near 82°F [28°C]. ESE wind to around 7 mph [12 kph], with gusts to near 11 mph [18 kph]. Dewpoint near 73°F [23°C] with humidity of 97%. Pressure around 29.36 in [994.2 mb]. UV Index: 7.55. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Sunday Night Overcast with a low around 65°F [19°C]. ESE wind to around 7 mph [12 kph], with gusts to near 11 mph [18 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Monday Light Drizzle with a high near 84°F [29°C]. S wind to around 15 mph [24 kph], with gusts to near 32 mph [52 kph]. Dewpoint near 73°F [23°C] with humidity of 95%. Pressure around 29.36 in [994.2 mb]. UV Index: 6.9. Chance of precipitation 23% with QPF of 0.01 in [0.2 mm]. Monday Night Light Drizzle with a low around 67°F [19°C]. S wind to around 15 mph [24 kph], with gusts to near 32 mph [52 kph]. Chance of precipitation 23% with QPF of 0.01 in [0.2 mm]. Tuesday Overcast with a high near 84°F [29°C]. NW wind to around 19 mph [30 kph], with gusts to near 32 mph [52 kph]. Dewpoint near 73°F [23°C] with humidity of 88%. Pressure around 29.36 in [994.2 mb]. UV Index: 7. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 62°F [17°C]. NW wind to around 19 mph [30 kph], with gusts to near 32 mph [52 kph]. Chance of precipitation 20% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 72°F [22°C]. N wind to around 14 mph [22 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 73°F [23°C] with humidity of 87%. Pressure around 29.36 in [994.2 mb]. UV Index: 7.15. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 48°F [9°C]. N wind to around 14 mph [22 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 3% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Lyndon, IL

Tonight: 0.0 mm | 0.00 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: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.2 mm | 0.01 in

Monday Night: 0.2 mm | 0.01 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 Lyndon, IL

Tonight: SSE @ 9 kph | 6 mph

Friday: SW @ 20 kph | 12 mph

Friday Night: SW @ 20 kph | 12 mph

Saturday: WNW @ 21 kph | 13 mph

Saturday Night: WNW @ 21 kph | 13 mph

Sunday: ESE @ 12 kph | 7 mph

Sunday Night: ESE @ 12 kph | 7 mph

Monday: S @ 24 kph | 15 mph

Monday Night: S @ 24 kph | 15 mph

Tuesday: NW @ 30 kph | 19 mph

Tuesday Night: NW @ 30 kph | 19 mph

Wednesday: N @ 22 kph | 14 mph

Wednesday Night: N @ 22 kph | 14 mph

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

Tonight: 91 %

Friday: 91 %

Friday Night: 91 %

Saturday: 85 %

Saturday Night: 85 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 95 %

Monday Night: 95 %

Tuesday: 88 %

Tuesday Night: 88 %

Wednesday: 87 %

Wednesday Night: 87 %

7 Day and Night - Snowfall Totals Forecast for Lyndon, 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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