7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index
7 Day & Night Weather Forecast for Lyndon, IL - (Fahrenheit & Celsius)
Valid: 5:32 AM 7/29/2026
Tonight
Clear with a low around 61°F[16°C]. E wind to around 6 mph[10 kph], with gusts to near 12 mph[20 kph]. Chance of precipitation 0% with QPF of 0.00 in[0.0 mm].
Thursday
Overcast with a high near 90°F[32°C]. SE wind to around 6 mph[9 kph], with gusts to near 14 mph[22 kph]. Dewpoint near 55°F[13°C] with humidity of 72%. Pressure around 29.30 in[992.2 mb]. UV Index: 6.5. Chance of precipitation 0% with QPF of 0.00 in[0.0 mm].
Thursday Night
Overcast with a low around 63°F[17°C]. SE wind to around 6 mph[9 kph], with gusts to near 14 mph[22 kph]. Chance of precipitation 0% with QPF of 0.00 in[0.0 mm].
Friday
Showers with a high near 71°F[21°C]. ESE wind to around 14 mph[22 kph], with gusts to near 27 mph[43 kph]. Dewpoint near 55°F[13°C] with humidity of 98%. Pressure around 29.30 in[992.2 mb]. UV Index: 0.65. Chance of precipitation 81% with QPF of 1.10 in[27.9 mm].
Friday Night
Showers with a low around 64°F[18°C]. ESE wind to around 14 mph[22 kph], with gusts to near 27 mph[43 kph]. Chance of precipitation 81% with QPF of 1.10 in[27.9 mm].
Saturday
Light Drizzle with a high near 77°F[25°C]. NE wind to around 13 mph[21 kph], with gusts to near 23 mph[36 kph]. Dewpoint near 55°F[13°C] with humidity of 97%. Pressure around 29.30 in[992.2 mb]. UV Index: 6.65. Chance of precipitation 75% with QPF of 0.03 in[0.7 mm].
Saturday Night
Light Drizzle with a low around 64°F[18°C]. NE wind to around 13 mph[21 kph], with gusts to near 23 mph[36 kph]. Chance of precipitation 75% with QPF of 0.03 in[0.7 mm].
Sunday
Overcast with a high near 79°F[26°C]. NE wind to around 6 mph[10 kph], with gusts to near 8 mph[13 kph]. Dewpoint near 55°F[13°C] with humidity of 91%. Pressure around 29.30 in[992.2 mb]. UV Index: 7.1. Chance of precipitation 11% with QPF of 0.00 in[0.0 mm].
Sunday Night
Overcast with a low around 60°F[16°C]. NE wind to around 6 mph[10 kph], with gusts to near 8 mph[13 kph]. Chance of precipitation 11% with QPF of 0.00 in[0.0 mm].
Monday
Clear with a high near 80°F[27°C]. SE wind to around 7 mph[11 kph], with gusts to near 10 mph[17 kph]. Dewpoint near 55°F[13°C] with humidity of 94%. Pressure around 29.30 in[992.2 mb]. UV Index: 7.25. Chance of precipitation 10% with QPF of 0.00 in[0.0 mm].
Monday Night
Clear with a low around 59°F[15°C]. SE wind to around 7 mph[11 kph], with gusts to near 10 mph[17 kph]. Chance of precipitation 10% with QPF of 0.00 in[0.0 mm].
Tuesday
Clear with a high near 81°F[27°C]. S wind to around 9 mph[14 kph], with gusts to near 14 mph[23 kph]. Dewpoint near 55°F[13°C] with humidity of 96%. Pressure around 29.30 in[992.2 mb]. UV Index: 7.15. Chance of precipitation 10% with QPF of 0.00 in[0.0 mm].
Tuesday Night
Clear with a low around 62°F[17°C]. S wind to around 9 mph[14 kph], with gusts to near 14 mph[23 kph]. Chance of precipitation 10% with QPF of 0.00 in[0.0 mm].
QPF - Max Wind Speed - Max Humidity - Snowfall
7 Day and Night - QPF Forecast for Lyndon, IL
Tonight: 0.0 mm|0.00 in
Thursday: 0.0 mm|0.00 in
Thursday Night: 0.0 mm|0.00 in
Friday: 27.9 mm|1.10 in
Friday Night: 27.9 mm|1.10 in
Saturday: 0.7 mm|0.03 in
Saturday Night: 0.7 mm|0.03 in
Sunday: 0.0 mm|0.00 in
Sunday Night: 0.0 mm|0.00 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 Lyndon, IL
Tonight: E @ 10 kph|6 mph
Thursday: SE @ 9 kph|6 mph
Thursday Night: SE @ 9 kph|6 mph
Friday: ESE @ 22 kph|14 mph
Friday Night: ESE @ 22 kph|14 mph
Saturday: NE @ 21 kph|13 mph
Saturday Night: NE @ 21 kph|13 mph
Sunday: NE @ 10 kph|6 mph
Sunday Night: NE @ 10 kph|6 mph
Monday: SE @ 11 kph|7 mph
Monday Night: SE @ 11 kph|7 mph
Tuesday: S @ 14 kph|9 mph
Tuesday Night: S @ 14 kph|9 mph
7 Day and Night - Maximum Humidity Forecast for Lyndon, IL
Tonight: 84 %
Thursday: 72 %
Thursday Night: 72 %
Friday: 98 %
Friday Night: 98 %
Saturday: 97 %
Saturday Night: 97 %
Sunday: 91 %
Sunday Night: 91 %
Monday: 94 %
Monday Night: 94 %
Tuesday: 96 %
Tuesday Night: 96 %
7 Day and Night - Snowfall Totals Forecast for Lyndon, IL