Jacob, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 79°F 26°C Heat Index: 79°F	Observed at: Jacob, IL	Elevation: 447 ft | 136 m
	Last Updated: July 16, 10:00 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 79°F | 26°C
	Pressure: 29.66 in | 1004.5 mb	Dewpoint: 75°F | 24°C
	Humidity: 89%	Wind: NNW 1 mph | NNW 2 kph
	Feels Like: 89°F | 32°C	Visibility: 29.6 mi | 47.6 km
	Lat/Long: 37.745 | -89.5369	Sunrise: 5:49 AM   Sunset: 8:19 PM

7 Day Graphical Forecast

Valid: 10:13 PM 7/16/2026

Tonight Foggy 71 °F 29% Chance Precipitation Friday Overcast 91 |74 °F 15% Chance Precipitation Saturday Overcast 92 |74 °F 32% Chance Precipitation Sunday Light Showers 94 |73 °F 49% Chance Precipitation Monday Overcast 94 |73 °F 9% Chance Precipitation Tuesday Overcast 104 |72 °F 4% Chance Precipitation Wednesday Overcast 75 |62 °F 4% Chance Precipitation

7 Hour Graphical Forecast

Valid: 10:13 PM 7/16/2026

10 PM Clear 79 °F 6% Chance Precipitation

11 PM Clear 78 °F 5% Chance Precipitation

12 AM Clear 78 °F 3% Chance Precipitation

1 AM Clear 77 °F 3% Chance Precipitation

2 AM Clear 76 °F 3% Chance Precipitation

3 AM Clear 76 °F 2% Chance Precipitation

4 AM Clear 75 °F 4% Chance Precipitation

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

7 Day & Night Weather Forecast for Jacob, IL - (Fahrenheit & Celsius) Valid: 10:13 PM 7/16/2026 Tonight Foggy with a low around 71°F [22°C]. SW wind to around 12 mph [19 kph], with gusts to near 19 mph [30 kph]. Chance of precipitation 29% with QPF of 0.00 in [0.0 mm]. Friday Overcast with a high near 91°F [33°C]. W wind to around 9 mph [14 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 75°F [24°C] with humidity of 95%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.7. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Friday Night Overcast with a low around 74°F [23°C]. W wind to around 9 mph [14 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 15% with QPF of 0.00 in [0.0 mm]. Saturday Overcast with a high near 92°F [33°C]. W wind to around 13 mph [21 kph], with gusts to near 24 mph [38 kph]. Dewpoint near 75°F [24°C] with humidity of 85%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.8. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Saturday Night Overcast with a low around 74°F [23°C]. W wind to around 13 mph [21 kph], with gusts to near 24 mph [38 kph]. Chance of precipitation 32% with QPF of 0.00 in [0.0 mm]. Sunday Light Showers with a high near 94°F [34°C]. WNW wind to around 9 mph [14 kph], with gusts to near 15 mph [24 kph]. Dewpoint near 75°F [24°C] with humidity of 92%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.85. Chance of precipitation 49% with QPF of 0.14 in [3.6 mm]. Sunday Night Light Showers with a low around 73°F [23°C]. WNW wind to around 9 mph [14 kph], with gusts to near 15 mph [24 kph]. Chance of precipitation 49% with QPF of 0.14 in [3.6 mm]. Monday Overcast with a high near 94°F [35°C]. SSE wind to around 7 mph [11 kph], with gusts to near 20 mph [32 kph]. Dewpoint near 75°F [24°C] with humidity of 97%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.6. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 73°F [23°C]. SSE wind to around 7 mph [11 kph], with gusts to near 20 mph [32 kph]. Chance of precipitation 9% with QPF of 0.00 in [0.0 mm]. Tuesday Overcast with a high near 104°F [40°C]. WSW wind to around 15 mph [23 kph], with gusts to near 29 mph [46 kph]. Dewpoint near 75°F [24°C] with humidity of 81%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.8. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Tuesday Night Overcast with a low around 72°F [22°C]. WSW wind to around 15 mph [23 kph], with gusts to near 29 mph [46 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Overcast with a high near 75°F [24°C]. N wind to around 13 mph [20 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 75°F [24°C] with humidity of 89%. Pressure around 29.66 in [1004.5 mb]. UV Index: 7.2. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm]. Wednesday Night Overcast with a low around 62°F [17°C]. N wind to around 13 mph [20 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 4% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Jacob, 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: 3.6 mm | 0.14 in

Sunday Night: 3.6 mm | 0.14 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 Jacob, IL

Tonight: SW @ 19 kph | 12 mph

Friday: W @ 14 kph | 9 mph

Friday Night: W @ 14 kph | 9 mph

Saturday: W @ 21 kph | 13 mph

Saturday Night: W @ 21 kph | 13 mph

Sunday: WNW @ 14 kph | 9 mph

Sunday Night: WNW @ 14 kph | 9 mph

Monday: SSE @ 11 kph | 7 mph

Monday Night: SSE @ 11 kph | 7 mph

Tuesday: WSW @ 23 kph | 15 mph

Tuesday Night: WSW @ 23 kph | 15 mph

Wednesday: N @ 20 kph | 13 mph

Wednesday Night: N @ 20 kph | 13 mph

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

Tonight: 96 %

Friday: 95 %

Friday Night: 95 %

Saturday: 85 %

Saturday Night: 85 %

Sunday: 92 %

Sunday Night: 92 %

Monday: 97 %

Monday Night: 97 %

Tuesday: 81 %

Tuesday Night: 81 %

Wednesday: 89 %

Wednesday Night: 89 %

7 Day and Night - Snowfall Totals Forecast for Jacob, 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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