Nelson, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 81°F 27°C Heat Index: 86°F	Observed at: Nelson, IL	Elevation: 974 ft | 297 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 81°F | 27°C
	Pressure: 29.32 in | 993 mb	Dewpoint: 74°F | 23°C
	Humidity: 80%	Wind: SW 2 mph | SW 3 kph
	Feels Like: 90°F | 32°C	Visibility: 37.1 mi | 59.7 km
	Lat/Long: 41.7964 | -89.6017	Sunrise: 5:37 AM   Sunset: 8:31 PM

7 Day Graphical Forecast

Valid: 10:17 PM 7/16/2026

Tonight Mostly Clear 71 °F 4% Chance Precipitation Friday Partly Cloudy 91 |72 °F 22% Chance Precipitation Saturday Overcast 89 |73 °F 14% Chance Precipitation Sunday Overcast 81 |65 °F 1% Chance Precipitation Monday Light Drizzle 84 |66 °F 33% Chance Precipitation Tuesday Overcast 82 |62 °F 33% Chance Precipitation Wednesday Overcast 71 |48 °F 3% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:17 PM 7/16/2026

10 PM Clear 81 °F 2% Chance Precipitation

11 PM Clear 80 °F 4% Chance Precipitation

12 AM Clear 78 °F 1% Chance Precipitation

1 AM Clear 77 °F 1% Chance Precipitation

2 AM Clear 75 °F 0% Chance Precipitation

3 AM Clear 74 °F 2% 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 Nelson, IL - (Fahrenheit & Celsius) Valid: 10:17 PM 7/16/2026 Tonight Mostly Clear with a low around 71°F [22°C]. S wind to around 5 mph [9 kph], with gusts to near 7 mph [12 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Friday Partly Cloudy with a high near 91°F [33°C]. SW wind to around 15 mph [24 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 74°F [23°C] with humidity of 86%. Pressure around 29.32 in [993 mb]. UV Index: 7.45. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Friday Night Partly Cloudy with a low around 72°F [22°C]. SW wind to around 15 mph [24 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 22% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 89°F [31°C]. NW wind to around 13 mph [21 kph], with gusts to near 28 mph [44 kph]. Dewpoint near 74°F [23°C] with humidity of 85%. Pressure around 29.32 in [993 mb]. UV Index: 7.45. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Saturday Night Overcast with a low around 73°F [23°C]. NW wind to around 13 mph [21 kph], with gusts to near 28 mph [44 kph]. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Sunday Overcast with a high near 81°F [27°C]. ESE wind to around 7 mph [12 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 74°F [23°C] with humidity of 97%. Pressure around 29.32 in [993 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 [18°C]. ESE wind to around 7 mph [12 kph], with gusts to near 14 mph [23 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 13 mph [21 kph], with gusts to near 33 mph [54 kph]. Dewpoint near 74°F [23°C] with humidity of 95%. Pressure around 29.32 in [993 mb]. UV Index: 6.55. Chance of precipitation 33% with QPF of 0.01 in [0.2 mm]. Monday Night Light Drizzle with a low around 66°F [19°C]. S wind to around 13 mph [21 kph], with gusts to near 33 mph [54 kph]. Chance of precipitation 33% with QPF of 0.01 in [0.2 mm]. Tuesday Overcast with a high near 82°F [28°C]. NW wind to around 19 mph [31 kph], with gusts to near 37 mph [59 kph]. Dewpoint near 74°F [23°C] with humidity of 88%. Pressure around 29.32 in [993 mb]. UV Index: 7.1. Chance of precipitation 33% 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 [31 kph], with gusts to near 37 mph [59 kph]. Chance of precipitation 33% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 71°F [22°C]. NNE wind to around 14 mph [23 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 74°F [23°C] with humidity of 87%. Pressure around 29.32 in [993 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]. NNE wind to around 14 mph [23 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 Nelson, 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 Nelson, IL

Tonight: S @ 9 kph | 5 mph

Friday: SW @ 24 kph | 15 mph

Friday Night: SW @ 24 kph | 15 mph

Saturday: NW @ 21 kph | 13 mph

Saturday Night: NW @ 21 kph | 13 mph

Sunday: ESE @ 12 kph | 7 mph

Sunday Night: ESE @ 12 kph | 7 mph

Monday: S @ 21 kph | 13 mph

Monday Night: S @ 21 kph | 13 mph

Tuesday: NW @ 31 kph | 19 mph

Tuesday Night: NW @ 31 kph | 19 mph

Wednesday: NNE @ 23 kph | 14 mph

Wednesday Night: NNE @ 23 kph | 14 mph

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

Tonight: 96 %

Friday: 86 %

Friday Night: 86 %

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 Nelson, 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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