Bismarck, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Bismarck, IL in one place.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. West southwest wind around 9 mph, with gusts as high as 16 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Bismarck, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 21, 2026 9:50 AM CDT.
The active forecast window currently covers Apr 22 to Apr 27, 2026 for Bismarck, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 9:50 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Bismarck
Thursday looks like the warmest upcoming period in Bismarck at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday at about 6 to 17 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 9:50 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 57. South southwest wind around 7 mph.
Mostly sunny, with a high near 80. South wind 6 to 17 mph, with gusts as high as 25 mph.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 75. South southwest wind 12 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 80%.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 70.
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 72.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
76°F |
9 mph
WSW
|
|
Wednesday Night
Apr 22
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
57°F |
7 mph
SSW
|
|
Thursday
Apr 23
|
Mostly Sunny
|
80°F |
6 to 17 mph
S
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Chance Showers And Thunderstorms
|
61°F |
14 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
75°F |
12 to 16 mph
SSW
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms
|
53°F |
7 to 10 mph
WNW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers
|
70°F |
8 to 12 mph
N
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
47°F |
7 to 10 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny
|
72°F |
10 mph
ENE
|
|
Sunday Night
Apr 26
|
Slight Chance Showers And Thunderstorms
|
53°F |
9 mph
E
|
|
Monday
Apr 27
|
Chance Showers And Thunderstorms
|
73°F |
10 to 15 mph
SE
|
|
Monday Night
Apr 27
|
Chance Showers And Thunderstorms
|
54°F |
13 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Bismarck.