Olmsted, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 78°F 26°C Heat Index: 78°F	Observed at: Olmsted, IL	Elevation: 373 ft | 114 m
	Last Updated: July 16, 10:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 78°F | 26°C
	Pressure: 29.67 in | 1004.7 mb	Dewpoint: 75°F | 24°C
	Humidity: 90%	Wind: SW 2 mph | SW 3 kph
	Feels Like: 89°F | 32°C	Visibility: 27.3 mi | 44 km
	Lat/Long: 37.1806 | -89.0889	Sunrise: 5:49 AM   Sunset: 8:15 PM

7 Day Graphical Forecast

Valid: 10:29 PM 7/16/2026

Tonight Foggy 73 °F 27% Chance Precipitation Friday Overcast 90 |75 °F 17% Chance Precipitation Saturday Heavy Drizzle 88 |74 °F 32% Chance Precipitation Sunday Light Showers 92 |73 °F 55% Chance Precipitation Monday Drizzle 92 |73 °F 11% Chance Precipitation Tuesday Overcast 96 |77 °F 9% Chance Precipitation Wednesday Partly Cloudy 78 |62 °F 9% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:29 PM 7/16/2026

10 PM Clear 79 °F 3% Chance Precipitation

11 PM Clear 78 °F 2% Chance Precipitation

12 AM Clear 78 °F 3% Chance Precipitation

1 AM Clear 77 °F 2% Chance Precipitation

2 AM Clear 76 °F 1% Chance Precipitation

3 AM Clear 76 °F 2% Chance Precipitation

4 AM Clear 75 °F 2% Chance Precipitation

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

7 Day & Night Weather Forecast for Olmsted, IL - (Fahrenheit & Celsius) Valid: 10:29 PM 7/16/2026 Tonight Foggy with a low around 73°F [23°C]. SW wind to around 7 mph [12 kph], with gusts to near 11 mph [17 kph]. Chance of precipitation 27% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 90°F [32°C]. W wind to around 7 mph [12 kph], with gusts to near 15 mph [23 kph]. Dewpoint near 75°F [24°C] with humidity of 94%. Pressure around 29.67 in [1004.7 mb]. UV Index: 7.75. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 75°F [24°C]. W wind to around 7 mph [12 kph], with gusts to near 15 mph [23 kph]. Chance of precipitation 17% with QPF of 0.00 in [0.0 mm]. Saturday Heavy Drizzle with a high near 88°F [31°C]. WSW wind to around 12 mph [19 kph], with gusts to near 24 mph [38 kph]. Dewpoint near 75°F [24°C] with humidity of 89%. Pressure around 29.67 in [1004.7 mb]. UV Index: 7.85. Chance of precipitation 32% with QPF of 0.07 in [1.8 mm]. Saturday Night Heavy Drizzle with a low around 74°F [23°C]. WSW wind to around 12 mph [19 kph], with gusts to near 24 mph [38 kph]. Chance of precipitation 32% with QPF of 0.07 in [1.8 mm]. Sunday Light Showers with a high near 92°F [33°C]. NW wind to around 8 mph [12 kph], with gusts to near 23 mph [36 kph]. Dewpoint near 75°F [24°C] with humidity of 91%. Pressure around 29.67 in [1004.7 mb]. UV Index: 7.8. Chance of precipitation 55% with QPF of 0.11 in [2.9 mm]. Sunday Night Light Showers with a low around 73°F [23°C]. NW wind to around 8 mph [12 kph], with gusts to near 23 mph [36 kph]. Chance of precipitation 55% with QPF of 0.11 in [2.9 mm]. Monday Drizzle with a high near 92°F [34°C]. SSE wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Dewpoint near 75°F [24°C] with humidity of 97%. Pressure around 29.67 in [1004.7 mb]. UV Index: 7.45. Chance of precipitation 11% with QPF of 0.04 in [0.9 mm]. Monday Night Drizzle with a low around 73°F [23°C]. SSE wind to around 7 mph [11 kph], with gusts to near 12 mph [20 kph]. Chance of precipitation 11% with QPF of 0.04 in [0.9 mm]. Tuesday Overcast with a high near 96°F [36°C]. SW wind to around 19 mph [30 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 75°F [24°C] with humidity of 84%. Pressure around 29.67 in [1004.7 mb]. UV Index: 8. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 77°F [25°C]. SW wind to around 19 mph [30 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Wednesday Partly Cloudy with a high near 78°F [25°C]. NNE wind to around 16 mph [25 kph], with gusts to near 28 mph [44 kph]. Dewpoint near 75°F [24°C] with humidity of 85%. Pressure around 29.67 in [1004.7 mb]. UV Index: 7.3. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Wednesday Night Partly Cloudy with a low around 62°F [17°C]. NNE wind to around 16 mph [25 kph], with gusts to near 28 mph [44 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm].

---

7 Day and Night - QPF Forecast for Olmsted, IL

Tonight: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 1.8 mm | 0.07 in

Saturday Night: 1.8 mm | 0.07 in

Sunday: 2.9 mm | 0.11 in

Sunday Night: 2.9 mm | 0.11 in

Monday: 0.9 mm | 0.04 in

Monday Night: 0.9 mm | 0.04 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 Olmsted, IL

Tonight: SW @ 12 kph | 7 mph

Friday: W @ 12 kph | 7 mph

Friday Night: W @ 12 kph | 7 mph

Saturday: WSW @ 19 kph | 12 mph

Saturday Night: WSW @ 19 kph | 12 mph

Sunday: NW @ 12 kph | 8 mph

Sunday Night: NW @ 12 kph | 8 mph

Monday: SSE @ 11 kph | 7 mph

Monday Night: SSE @ 11 kph | 7 mph

Tuesday: SW @ 30 kph | 19 mph

Tuesday Night: SW @ 30 kph | 19 mph

Wednesday: NNE @ 25 kph | 16 mph

Wednesday Night: NNE @ 25 kph | 16 mph

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

Tonight: 100 %

Friday: 94 %

Friday Night: 94 %

Saturday: 89 %

Saturday Night: 89 %

Sunday: 91 %

Sunday Night: 91 %

Monday: 97 %

Monday Night: 97 %

Tuesday: 84 %

Tuesday Night: 84 %

Wednesday: 85 %

Wednesday Night: 85 %

7 Day and Night - Snowfall Totals Forecast for Olmsted, 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

Contact Us | Mobile Private Policy | Terms & Conds | Consent Preferences | Cookie Policy Never base any life decisions on weather information from this site or anywhere over the Internet. Site is dedicated to our Lord & Savior Jesus Christ | Random Quotes of Jesus Copyright © 2026 El Dorado Weather, Inc. | Site Designed By:  Webmaster Danny