Harmon, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 61°F 16°C	Observed at: Harmon, IL	Elevation: 964 ft | 294 m
	Last Updated: July 29, 6:00 AM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 61°F | 16°C
	Pressure: 29.23 in | 989.8 mb	Dewpoint: 56°F | 13°C
	Humidity: 83%	Wind: NNE 3 mph | NNE 5 kph
	Feels Like: 62°F | 17°C	Visibility: 33.4 mi | 53.8 km
	Lat/Long: 41.7228 | -89.5539	Sunrise: 5:49 AM   Sunset: 8:19 PM

7 Day Graphical Forecast

Valid: 6:14 AM 7/29/2026

Today Clear 86 |61 °F 30 |16 °C 0% Chance Precipitation Thursday Overcast 90 |64 °F 32 |18 °C 0% Chance Precipitation Friday Heavy Showers 70 |64 °F 21 |18 °C 79% Chance Precipitation Saturday Light Drizzle 75 |64 °F 24 |18 °C 79% Chance Precipitation Sunday Overcast 79 |60 °F 26 |15 °C 11% Chance Precipitation Monday Clear 79 |58 °F 26 |15 °C 7% Chance Precipitation Tuesday Clear 80 |62 °F 27 |17 °C 11% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:14 AM 7/29/2026

6 AM Clear 61 °F 0% Chance Precipitation

7 AM Clear 63 °F 0% Chance Precipitation

8 AM Clear 67 °F 0% Chance Precipitation

9 AM Clear 72 °F 0% Chance Precipitation

10 AM Clear 77 °F 0% Chance Precipitation

11 AM Clear 80 °F 0% Chance Precipitation

12 PM Clear 82 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Harmon, IL - (Fahrenheit & Celsius) Valid: 6:14 AM 7/29/2026 Today Clear with a high near 86°F [30°C]. ENE wind to around 8 mph [12 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 56°F [13°C] with humidity of 84%. Pressure around 29.23 in [989.8 mb]. UV Index: 7.35. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tonight Clear with a low around 61°F [16°C]. ENE wind to around 8 mph [12 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 90°F [32°C]. SSE wind to around 7 mph [12 kph], with gusts to near 15 mph [23 kph]. Dewpoint near 56°F [13°C] with humidity of 65%. Pressure around 29.23 in [989.8 mb]. UV Index: 6.2. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 64°F [18°C]. SSE wind to around 7 mph [12 kph], with gusts to near 15 mph [23 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Heavy Showers with a high near 70°F [21°C]. ESE wind to around 13 mph [21 kph], with gusts to near 24 mph [38 kph]. Dewpoint near 56°F [13°C] with humidity of 98%. Pressure around 29.23 in [989.8 mb]. UV Index: 0.75. Chance of precipitation 79% with QPF of 1.16 in [29.4 mm]. Friday Night Heavy Showers with a low around 64°F [18°C]. ESE wind to around 13 mph [21 kph], with gusts to near 24 mph [38 kph]. Chance of precipitation 79% with QPF of 1.16 in [29.4 mm]. Saturday Light Drizzle with a high near 75°F [24°C]. NE wind to around 13 mph [21 kph], with gusts to near 23 mph [37 kph]. Dewpoint near 56°F [13°C] with humidity of 97%. Pressure around 29.23 in [989.8 mb]. UV Index: 6.85. Chance of precipitation 79% 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 [37 kph]. Chance of precipitation 79% with QPF of 0.03 in [0.7 mm]. Sunday Overcast with a high near 79°F [26°C]. NE wind to around 7 mph [12 kph], with gusts to near 9 mph [15 kph]. Dewpoint near 56°F [13°C] with humidity of 92%. Pressure around 29.23 in [989.8 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 [15°C]. NE wind to around 7 mph [12 kph], with gusts to near 9 mph [15 kph]. Chance of precipitation 11% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 79°F [26°C]. SE wind to around 7 mph [12 kph], with gusts to near 9 mph [15 kph]. Dewpoint near 56°F [13°C] with humidity of 92%. Pressure around 29.23 in [989.8 mb]. UV Index: 7.2. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 58°F [15°C]. SE wind to around 7 mph [12 kph], with gusts to near 9 mph [15 kph]. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 80°F [27°C]. S wind to around 9 mph [14 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 56°F [13°C] with humidity of 96%. Pressure around 29.23 in [989.8 mb]. UV Index: 7.15. Chance of precipitation 11% 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 11% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Harmon, IL

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 29.4 mm | 1.16 in

Friday Night: 29.4 mm | 1.16 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 Harmon, IL

Today: ENE @ 12 kph | 8 mph

Tonight: ENE @ 12 kph | 8 mph

Thursday: SSE @ 12 kph | 7 mph

Thursday Night: SSE @ 12 kph | 7 mph

Friday: ESE @ 21 kph | 13 mph

Friday Night: ESE @ 21 kph | 13 mph

Saturday: NE @ 21 kph | 13 mph

Saturday Night: NE @ 21 kph | 13 mph

Sunday: NE @ 12 kph | 7 mph

Sunday Night: NE @ 12 kph | 7 mph

Monday: SE @ 12 kph | 7 mph

Monday Night: SE @ 12 kph | 7 mph

Tuesday: S @ 14 kph | 9 mph

Tuesday Night: S @ 14 kph | 9 mph

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

Today: 84 %

Tonight: 84 %

Thursday: 65 %

Thursday Night: 65 %

Friday: 98 %

Friday Night: 98 %

Saturday: 97 %

Saturday Night: 97 %

Sunday: 92 %

Sunday Night: 92 %

Monday: 92 %

Monday Night: 92 %

Tuesday: 96 %

Tuesday Night: 96 %

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

Today: 0.0 cm | 0.00 in

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

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