Bismarck, Illinois 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 73°F 23°C Heat Index: 73°F	Observed at: Bismarck, IL	Elevation: 774 ft | 236 m
	Last Updated: July 27, 8:00 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 73°F | 23°C
	Pressure: 29.05 in | 983.7 mb	Dewpoint: 69°F | 21°C
	Humidity: 88%	Wind: SE 11 mph | SE 18 kph
	Feels Like: 76°F | 24°C	Visibility: 30.4 mi | 48.9 km
	Lat/Long: 40.2639 | -87.6081	Sunrise: 5:43 AM   Sunset: 8:09 PM

7 Day Graphical Forecast

Valid: 6:53 AM 7/29/2026

Today Heavy Showers 91 |72 °F 33 |22 °C 34% Chance Precipitation Tuesday Light Drizzle 82 |66 °F 28 |19 °C 6% Chance Precipitation Wednesday Clear 79 |59 °F 26 |15 °C 0% Chance Precipitation Thursday Overcast 82 |63 °F 28 |17 °C 2% Chance Precipitation Friday Rain 72 |64 °F 22 |18 °C 33% Chance Precipitation Saturday Light Drizzle 77 |62 °F 25 |17 °C 50% Chance Precipitation Sunday Light Drizzle 82 |62 °F 28 |16 °C 22% Chance Precipitation

7 Hour Graphical Forecast

Valid: 6:53 AM 7/29/2026

6 AM Clear 59 °F 0% Chance Precipitation

7 AM Clear 62 °F 0% Chance Precipitation

8 AM Clear 66 °F 0% Chance Precipitation

9 AM Clear 70 °F 0% Chance Precipitation

10 AM Clear 74 °F 0% Chance Precipitation

11 AM Clear 76 °F 0% Chance Precipitation

12 PM Clear 77 °F 0% Chance Precipitation

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

7 Day & Night Weather Forecast for Bismarck, IL - (Fahrenheit & Celsius) Valid: 6:53 AM 7/29/2026 Today Heavy Showers with a high near 91°F [33°C]. SSW wind to around 16 mph [25 kph], with gusts to near 24 mph [39 kph]. Dewpoint near 69°F [21°C] with humidity of 100%. Pressure around 29.05 in [983.7 mb]. UV Index: 6.3. Chance of precipitation 34% with QPF of 0.61 in [15.5 mm]. Tonight Heavy Showers with a low around 72°F [22°C]. SSW wind to around 16 mph [25 kph], with gusts to near 24 mph [39 kph]. Chance of precipitation 34% with QPF of 0.61 in [15.5 mm]. Tuesday Light Drizzle with a high near 82°F [28°C]. N wind to around 18 mph [29 kph], with gusts to near 31 mph [49 kph]. Dewpoint near 69°F [21°C] with humidity of 92%. Pressure around 29.05 in [983.7 mb]. UV Index: 7.2. Chance of precipitation 6% with QPF of 0.02 in [0.4 mm]. Tuesday Night Light Drizzle with a low around 66°F [19°C]. N wind to around 18 mph [29 kph], with gusts to near 31 mph [49 kph]. Chance of precipitation 6% with QPF of 0.02 in [0.4 mm]. Wednesday Clear with a high near 79°F [26°C]. N wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Dewpoint near 69°F [21°C] with humidity of 90%. Pressure around 29.05 in [983.7 mb]. UV Index: 7.5. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Wednesday Night Clear with a low around 59°F [15°C]. N wind to around 9 mph [14 kph], with gusts to near 17 mph [27 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Overcast with a high near 82°F [28°C]. W wind to around 8 mph [12 kph], with gusts to near 9 mph [15 kph]. Dewpoint near 69°F [21°C] with humidity of 88%. Pressure around 29.05 in [983.7 mb]. UV Index: 7.45. Chance of precipitation 2% with QPF of 0.00 in [0.0 mm]. Thursday Night Overcast with a low around 63°F [17°C]. W wind to around 8 mph [12 kph], with gusts to near 9 mph [15 kph]. Chance of precipitation 2% with QPF of 0.00 in [0.0 mm]. Friday Rain with a high near 72°F [22°C]. NE wind to around 11 mph [17 kph], with gusts to near 18 mph [29 kph]. Dewpoint near 69°F [21°C] with humidity of 98%. Pressure around 29.05 in [983.7 mb]. UV Index: 0.7. Chance of precipitation 33% with QPF of 0.87 in [22.0 mm]. Friday Night Rain with a low around 64°F [18°C]. NE wind to around 11 mph [17 kph], with gusts to near 18 mph [29 kph]. Chance of precipitation 33% with QPF of 0.87 in [22.0 mm]. Saturday Light Drizzle with a high near 77°F [25°C]. NE wind to around 9 mph [14 kph], with gusts to near 17 mph [28 kph]. Dewpoint near 69°F [21°C] with humidity of 97%. Pressure around 29.05 in [983.7 mb]. UV Index: 4.7. Chance of precipitation 50% with QPF of 0.01 in [0.2 mm]. Saturday Night Light Drizzle with a low around 62°F [17°C]. NE wind to around 9 mph [14 kph], with gusts to near 17 mph [28 kph]. Chance of precipitation 50% with QPF of 0.01 in [0.2 mm]. Sunday Light Drizzle with a high near 82°F [28°C]. NNE wind to around 9 mph [14 kph], with gusts to near 18 mph [28 kph]. Dewpoint near 69°F [21°C] with humidity of 96%. Pressure around 29.05 in [983.7 mb]. UV Index: 7.15. Chance of precipitation 22% with QPF of 0.01 in [0.3 mm]. Sunday Night Light Drizzle with a low around 62°F [16°C]. NNE wind to around 9 mph [14 kph], with gusts to near 18 mph [28 kph]. Chance of precipitation 22% with QPF of 0.01 in [0.3 mm].

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7 Day and Night - QPF Forecast for Bismarck, IL

Today: 15.5 mm | 0.61 in

Tonight: 15.5 mm | 0.61 in

Tuesday: 0.4 mm | 0.02 in

Tuesday Night: 0.4 mm | 0.02 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: 22.0 mm | 0.87 in

Friday Night: 22.0 mm | 0.87 in

Saturday: 0.2 mm | 0.01 in

Saturday Night: 0.2 mm | 0.01 in

Sunday: 0.3 mm | 0.01 in

Sunday Night: 0.3 mm | 0.01 in

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

Today: SSW @ 25 kph | 16 mph

Tonight: SSW @ 25 kph | 16 mph

Tuesday: N @ 29 kph | 18 mph

Tuesday Night: N @ 29 kph | 18 mph

Wednesday: N @ 14 kph | 9 mph

Wednesday Night: N @ 14 kph | 9 mph

Thursday: W @ 12 kph | 8 mph

Thursday Night: W @ 12 kph | 8 mph

Friday: NE @ 17 kph | 11 mph

Friday Night: NE @ 17 kph | 11 mph

Saturday: NE @ 14 kph | 9 mph

Saturday Night: NE @ 14 kph | 9 mph

Sunday: NNE @ 14 kph | 9 mph

Sunday Night: NNE @ 14 kph | 9 mph

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

Today: 100 %

Tonight: 100 %

Tuesday: 92 %

Tuesday Night: 92 %

Wednesday: 90 %

Wednesday Night: 90 %

Thursday: 88 %

Thursday Night: 88 %

Friday: 98 %

Friday Night: 98 %

Saturday: 97 %

Saturday Night: 97 %

Sunday: 96 %

Sunday Night: 96 %

7 Day and Night - Snowfall Totals Forecast for Bismarck, 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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