Smithboro, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 89°F 32°C Heat Index: 101°F	Observed at: Smithboro, IL	Elevation: 596 ft | 182 m
	Last Updated: July 27, 7:15 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 89°F | 32°C
	Pressure: 29.17 in | 987.9 mb	Dewpoint: 76°F | 24°C
	Humidity: 66%	Wind: WSW 3 mph | WSW 5 kph
	Feels Like: 100°F | 38°C	Visibility: 53 mi | 85.3 km
	Lat/Long: 38.8961 | -89.3406	Sunrise: 5:54 AM   Sunset: 8:13 PM

7 Day Graphical Forecast

Valid: 11:51 AM 7/28/2026

Today Overcast 92 |72 °F 33 |22 °C 12% Chance Precipitation Tuesday Overcast 92 |76 °F 33 |24 °C 5% Chance Precipitation Wednesday Overcast 82 |66 °F 28 |19 °C 1% Chance Precipitation Thursday Overcast 84 |63 °F 29 |17 °C 1% Chance Precipitation Friday Showers 72 |66 °F 22 |19 °C 47% Chance Precipitation Saturday Drizzle 79 |64 °F 26 |18 °C 50% Chance Precipitation Sunday Partly Cloudy 83 |63 °F 28 |17 °C 21% Chance Precipitation

7 Hour Graphical Forecast

Valid: 11:51 AM 7/28/2026

11 AM Clear 88 °F 1% Chance Precipitation

12 PM Clear 90 °F 1% Chance Precipitation

1 PM Overcast 91 °F 2% Chance Precipitation

2 PM Overcast 91 °F 2% Chance Precipitation

3 PM Overcast 92 °F 2% Chance Precipitation

4 PM Partly Cloudy 91 °F 2% Chance Precipitation

5 PM Overcast 88 °F 3% Chance Precipitation

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

7 Day & Night Weather Forecast for Smithboro, IL - (Fahrenheit & Celsius) Valid: 11:51 AM 7/28/2026 Today Overcast with a high near 92°F [33°C]. SSW wind to around 14 mph [22 kph], with gusts to near 30 mph [49 kph]. Dewpoint near 76°F [24°C] with humidity of 100%. Pressure around 29.17 in [987.9 mb]. UV Index: 7.65. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm]. Tonight Overcast with a low around 72°F [22°C]. SSW wind to around 14 mph [22 kph], with gusts to near 30 mph [49 kph]. Chance of precipitation 12% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 92°F [33°C]. N wind to around 12 mph [19 kph], with gusts to near 19 mph [30 kph]. Dewpoint near 76°F [24°C] with humidity of 89%. Pressure around 29.17 in [987.9 mb]. UV Index: 7.6. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 76°F [24°C]. N wind to around 12 mph [19 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 5% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 82°F [28°C]. NE wind to around 11 mph [17 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 76°F [24°C] with humidity of 89%. Pressure around 29.17 in [987.9 mb]. UV Index: 7.65. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 66°F [19°C]. NE wind to around 11 mph [17 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 84°F [29°C]. SSE wind to around 8 mph [13 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 76°F [24°C] with humidity of 90%. Pressure around 29.17 in [987.9 mb]. UV Index: 7.5. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 63°F [17°C]. SSE wind to around 8 mph [13 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.0 mm]. Friday Showers with a high near 72°F [22°C]. ESE wind to around 15 mph [23 kph], with gusts to near 29 mph [47 kph]. Dewpoint near 76°F [24°C] with humidity of 98%. Pressure around 29.17 in [987.9 mb]. UV Index: 1.15. Chance of precipitation 47% with QPF of 0.66 in [16.8 mm]. Friday Night Showers with a low around 66°F [19°C]. ESE wind to around 15 mph [23 kph], with gusts to near 29 mph [47 kph]. Chance of precipitation 47% with QPF of 0.66 in [16.8 mm]. Saturday Drizzle with a high near 79°F [26°C]. NE wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Dewpoint near 76°F [24°C] with humidity of 98%. Pressure around 29.17 in [987.9 mb]. UV Index: 5.5. Chance of precipitation 50% with QPF of 0.09 in [2.3 mm]. Saturday Night Drizzle with a low around 64°F [18°C]. NE wind to around 14 mph [23 kph], with gusts to near 28 mph [45 kph]. Chance of precipitation 50% with QPF of 0.09 in [2.3 mm]. Sunday Partly Cloudy with a high near 83°F [28°C]. NNE wind to around 12 mph [19 kph], with gusts to near 27 mph [43 kph]. Dewpoint near 76°F [24°C] with humidity of 96%. Pressure around 29.17 in [987.9 mb]. UV Index: 7.35. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm]. Sunday Night Partly Cloudy with a low around 63°F [17°C]. NNE wind to around 12 mph [19 kph], with gusts to near 27 mph [43 kph]. Chance of precipitation 21% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Smithboro, IL

Today: 0.0 mm | 0.00 in

Tonight: 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

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 16.8 mm | 0.66 in

Friday Night: 16.8 mm | 0.66 in

Saturday: 2.3 mm | 0.09 in

Saturday Night: 2.3 mm | 0.09 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

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

Today: SSW @ 22 kph | 14 mph

Tonight: SSW @ 22 kph | 14 mph

Tuesday: N @ 19 kph | 12 mph

Tuesday Night: N @ 19 kph | 12 mph

Wednesday: NE @ 17 kph | 11 mph

Wednesday Night: NE @ 17 kph | 11 mph

Thursday: SSE @ 13 kph | 8 mph

Thursday Night: SSE @ 13 kph | 8 mph

Friday: ESE @ 23 kph | 15 mph

Friday Night: ESE @ 23 kph | 15 mph

Saturday: NE @ 23 kph | 14 mph

Saturday Night: NE @ 23 kph | 14 mph

Sunday: NNE @ 19 kph | 12 mph

Sunday Night: NNE @ 19 kph | 12 mph

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

Today: 100 %

Tonight: 100 %

Tuesday: 89 %

Tuesday Night: 89 %

Wednesday: 89 %

Wednesday Night: 89 %

Thursday: 90 %

Thursday Night: 90 %

Friday: 98 %

Friday Night: 98 %

Saturday: 98 %

Saturday Night: 98 %

Sunday: 96 %

Sunday Night: 96 %

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

Today: 0.0 cm | 0.00 in

Tonight: 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

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

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