Olney, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Partly Cloudy 78°F 26°C Heat Index: 78°F	Observed at: Olney, IL	Elevation: 476 ft | 145 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Partly Cloudy	Temperature: 78°F | 26°C
	Pressure: 29.53 in | 999.9 mb	Dewpoint: 77°F | 25°C
	Humidity: 95%	Wind: SW 3 mph | SW 5 kph
	Feels Like: 89°F | 32°C	Visibility: 24.9 mi | 40 km
	Lat/Long: 38.7308 | -88.0853	Sunrise: 5:40 AM   Sunset: 8:16 PM

7 Day Graphical Forecast

Valid: 10:19 PM 7/16/2026

Tonight Showers 74 °F 36% Chance Precipitation Friday Overcast 88 |74 °F 26% Chance Precipitation Saturday Clear 92 |74 °F 48% Chance Precipitation Sunday Heavy Drizzle 86 |72 °F 48% Chance Precipitation Monday Overcast 88 |68 °F 6% Chance Precipitation Tuesday Overcast 94 |67 °F 9% Chance Precipitation Wednesday Mostly Clear 73 |59 °F 5% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:19 PM 7/16/2026

10 PM Overcast 79 °F 2% Chance Precipitation

11 PM Mostly Clear 78 °F 1% Chance Precipitation

12 AM Overcast 77 °F 2% Chance Precipitation

1 AM Mostly Clear 76 °F 2% Chance Precipitation

2 AM Clear 76 °F 3% Chance Precipitation

3 AM Clear 76 °F 3% Chance Precipitation

4 AM Clear 75 °F 3% Chance Precipitation

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

7 Day & Night Weather Forecast for Olney, IL - (Fahrenheit & Celsius) Valid: 10:19 PM 7/16/2026 Tonight Showers with a low around 74°F [23°C]. SE wind to around 6 mph [10 kph], with gusts to near 7 mph [12 kph]. Chance of precipitation 36% with QPF of 0.23 in [5.8 mm]. Friday Overcast with a high near 88°F [31°C]. SW wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 77°F [25°C] with humidity of 96%. Pressure around 29.53 in [999.9 mb]. UV Index: 7.7. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 74°F [23°C]. SW wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 26% with QPF of 0.00 in [0.0 mm]. Saturday Clear with a high near 92°F [33°C]. W wind to around 14 mph [23 kph], with gusts to near 27 mph [43 kph]. Dewpoint near 77°F [25°C] with humidity of 90%. Pressure around 29.53 in [999.9 mb]. UV Index: 7.75. Chance of precipitation 48% with QPF of 0.01 in [0.3 mm]. Saturday Night Clear with a low around 74°F [23°C]. W wind to around 14 mph [23 kph], with gusts to near 27 mph [43 kph]. Chance of precipitation 48% with QPF of 0.01 in [0.3 mm]. Sunday Heavy Drizzle with a high near 86°F [30°C]. NE wind to around 8 mph [12 kph], with gusts to near 12 mph [19 kph]. Dewpoint near 77°F [25°C] with humidity of 97%. Pressure around 29.53 in [999.9 mb]. UV Index: 7.75. Chance of precipitation 48% with QPF of 0.16 in [4.0 mm]. Sunday Night Heavy Drizzle with a low around 72°F [22°C]. NE wind to around 8 mph [12 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 48% with QPF of 0.16 in [4.0 mm]. Monday Overcast with a high near 88°F [31°C]. SSE wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 77°F [25°C] with humidity of 88%. Pressure around 29.53 in [999.9 mb]. UV Index: 6.95. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 68°F [20°C]. SSE wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 6% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 94°F [34°C]. W wind to around 15 mph [25 kph], with gusts to near 32 mph [52 kph]. Dewpoint near 77°F [25°C] with humidity of 91%. Pressure around 29.53 in [999.9 mb]. UV Index: 7.35. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 67°F [20°C]. W wind to around 15 mph [25 kph], with gusts to near 32 mph [52 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Wednesday Mostly Clear with a high near 73°F [23°C]. NNE wind to around 13 mph [21 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 77°F [25°C] with humidity of 92%. Pressure around 29.53 in [999.9 mb]. UV Index: 7.6. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Wednesday Night Mostly Clear with a low around 59°F [15°C]. NNE wind to around 13 mph [21 kph], with gusts to near 28 mph [45 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 Olney, IL

Tonight: 5.8 mm | 0.23 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.3 mm | 0.01 in

Saturday Night: 0.3 mm | 0.01 in

Sunday: 4.0 mm | 0.16 in

Sunday Night: 4.0 mm | 0.16 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

Wednesday: 0.0 mm | 0.00 in

Wednesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Olney, IL

Tonight: SE @ 10 kph | 6 mph

Friday: SW @ 15 kph | 9 mph

Friday Night: SW @ 15 kph | 9 mph

Saturday: W @ 23 kph | 14 mph

Saturday Night: W @ 23 kph | 14 mph

Sunday: NE @ 12 kph | 8 mph

Sunday Night: NE @ 12 kph | 8 mph

Monday: SSE @ 14 kph | 9 mph

Monday Night: SSE @ 14 kph | 9 mph

Tuesday: W @ 25 kph | 15 mph

Tuesday Night: W @ 25 kph | 15 mph

Wednesday: NNE @ 21 kph | 13 mph

Wednesday Night: NNE @ 21 kph | 13 mph

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

Tonight: 100 %

Friday: 96 %

Friday Night: 96 %

Saturday: 90 %

Saturday Night: 90 %

Sunday: 97 %

Sunday Night: 97 %

Monday: 88 %

Monday Night: 88 %

Tuesday: 91 %

Tuesday Night: 91 %

Wednesday: 92 %

Wednesday Night: 92 %

7 Day and Night - Snowfall Totals Forecast for Olney, 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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