Oconee, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Partly Cloudy 77°F 25°C Heat Index: 77°F	Observed at: Oconee, IL	Elevation: 647 ft | 197 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Partly Cloudy	Temperature: 77°F | 25°C
	Pressure: 29.32 in | 992.9 mb	Dewpoint: 73°F | 23°C
	Humidity: 88%	Wind: SE 2 mph | SE 3 kph
	Feels Like: 86°F | 30°C	Visibility: 29.8 mi | 47.9 km
	Lat/Long: 39.2856 | -89.1075	Sunrise: 5:43 AM   Sunset: 8:21 PM

7 Day Graphical Forecast

Valid: 10:22 PM 7/16/2026

Tonight Drizzle 74 °F 32% Chance Precipitation Friday Overcast 90 |73 °F 19% Chance Precipitation Saturday Overcast 93 |74 °F 43% Chance Precipitation Sunday Drizzle 84 |72 °F 20% Chance Precipitation Monday Light Showers 89 |68 °F 6% Chance Precipitation Tuesday Overcast 89 |66 °F 10% Chance Precipitation Wednesday Partly Cloudy 72 |55 °F 5% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:22 PM 7/16/2026

10 PM Partly Cloudy 77 °F 3% Chance Precipitation

11 PM Overcast 76 °F 4% Chance Precipitation

12 AM Mostly Clear 75 °F 5% Chance Precipitation

1 AM Clear 74 °F 5% Chance Precipitation

2 AM Overcast 74 °F 4% Chance Precipitation

3 AM Mostly Clear 74 °F 5% Chance Precipitation

4 AM Clear 73 °F 7% Chance Precipitation

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

7 Day & Night Weather Forecast for Oconee, IL - (Fahrenheit & Celsius) Valid: 10:22 PM 7/16/2026 Tonight Drizzle with a low around 74°F [23°C]. SSW wind to around 8 mph [12 kph], with gusts to near 9 mph [15 kph]. Chance of precipitation 32% with QPF of 0.03 in [0.7 mm]. Friday Overcast with a high near 90°F [32°C]. WSW wind to around 12 mph [19 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 73°F [23°C] with humidity of 96%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.4. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 73°F [23°C]. WSW wind to around 12 mph [19 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 19% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 93°F [34°C]. W wind to around 15 mph [24 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 73°F [23°C] with humidity of 86%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.75. Chance of precipitation 43% with QPF of 0.00 in [0.1 mm]. Saturday Night Overcast with a low around 74°F [24°C]. W wind to around 15 mph [24 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 43% with QPF of 0.00 in [0.1 mm]. Sunday Drizzle with a high near 84°F [29°C]. ENE wind to around 9 mph [14 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 73°F [23°C] with humidity of 97%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.75. Chance of precipitation 20% with QPF of 0.04 in [1.0 mm]. Sunday Night Drizzle with a low around 72°F [22°C]. ENE wind to around 9 mph [14 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 20% with QPF of 0.04 in [1.0 mm]. Monday Light Showers with a high near 89°F [32°C]. SSE wind to around 9 mph [15 kph], with gusts to near 24 mph [38 kph]. Dewpoint near 73°F [23°C] with humidity of 89%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.35. Chance of precipitation 6% with QPF of 0.11 in [2.8 mm]. Monday Night Light Showers with a low around 68°F [20°C]. SSE wind to around 9 mph [15 kph], with gusts to near 24 mph [38 kph]. Chance of precipitation 6% with QPF of 0.11 in [2.8 mm]. Tuesday Overcast with a high near 89°F [32°C]. W wind to around 18 mph [29 kph], with gusts to near 36 mph [58 kph]. Dewpoint near 73°F [23°C] with humidity of 91%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.25. Chance of precipitation 10% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 66°F [19°C]. W wind to around 18 mph [29 kph], with gusts to near 36 mph [58 kph]. Chance of precipitation 10% with QPF of 0.00 in [0.0 mm]. Wednesday Partly Cloudy with a high near 72°F [22°C]. NNE wind to around 14 mph [22 kph], with gusts to near 29 mph [47 kph]. Dewpoint near 73°F [23°C] with humidity of 90%. Pressure around 29.32 in [992.9 mb]. UV Index: 7.55. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Wednesday Night Partly Cloudy with a low around 55°F [13°C]. NNE wind to around 14 mph [22 kph], with gusts to near 29 mph [47 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Oconee, IL

Tonight: 0.7 mm | 0.03 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.1 mm | 0.00 in

Saturday Night: 0.1 mm | 0.00 in

Sunday: 1.0 mm | 0.04 in

Sunday Night: 1.0 mm | 0.04 in

Monday: 2.8 mm | 0.11 in

Monday Night: 2.8 mm | 0.11 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 Oconee, IL

Tonight: SSW @ 12 kph | 8 mph

Friday: WSW @ 19 kph | 12 mph

Friday Night: WSW @ 19 kph | 12 mph

Saturday: W @ 24 kph | 15 mph

Saturday Night: W @ 24 kph | 15 mph

Sunday: ENE @ 14 kph | 9 mph

Sunday Night: ENE @ 14 kph | 9 mph

Monday: SSE @ 15 kph | 9 mph

Monday Night: SSE @ 15 kph | 9 mph

Tuesday: W @ 29 kph | 18 mph

Tuesday Night: W @ 29 kph | 18 mph

Wednesday: NNE @ 22 kph | 14 mph

Wednesday Night: NNE @ 22 kph | 14 mph

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

Tonight: 88 %

Friday: 96 %

Friday Night: 96 %

Saturday: 86 %

Saturday Night: 86 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 89 %

Monday Night: 89 %

Tuesday: 91 %

Tuesday Night: 91 %

Wednesday: 90 %

Wednesday Night: 90 %

7 Day and Night - Snowfall Totals Forecast for Oconee, 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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