Bismarck, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Bismarck, IL in one place.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 80. East northeast wind around 6 mph. Chance of precipitation is 20%. 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: Jun 27, 2026 1:25 AM CDT.
The active forecast window currently covers Jun 27 to Jul 3, 2026 for Bismarck, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 27 to Jul 3, 2026
- Latest sync
- Jun 27, 2026 1:25 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Bismarck
Thursday looks like the warmest upcoming period in Bismarck at 95 degrees F.
Saturday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Monday at about 7 to 10 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 27, 2026 1:25 AM CDT
- Coverage
- 7 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 after 3am. Mostly cloudy, with a low around 66. East northeast wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Southeast wind 5 to 9 mph, with gusts as high as 16 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 72. South southeast wind around 9 mph.
Sunny, with a high near 92. South wind 7 to 10 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 74. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Sunny, with a high near 93.
Mostly clear, with a low around 74.
Sunny, with a high near 94.
Mostly clear, with a low around 74.
Sunny, with a high near 95.
Mostly clear, with a low around 74.
A chance of showers and thunderstorms after 7am. Sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jun 27
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
80°F |
6 mph
ENE
|
|
Saturday Night
Jun 27
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
66°F |
6 mph
ENE
|
|
Sunday
Jun 28
|
Slight Chance Showers And Thunderstorms
|
87°F |
5 to 9 mph
SE
|
|
Sunday Night
Jun 28
|
Mostly Clear
|
72°F |
9 mph
SSE
|
|
Monday
Jun 29
|
Sunny
|
92°F |
7 to 10 mph
S
|
|
Monday Night
Jun 29
|
Mostly Clear
|
74°F |
6 to 10 mph
SSW
|
|
Tuesday
Jun 30
|
Sunny
|
93°F |
5 to 9 mph
SSW
|
|
Tuesday Night
Jun 30
|
Mostly Clear
|
74°F |
3 to 9 mph
SSW
|
|
Wednesday
Jul 1
|
Sunny
|
94°F |
3 to 8 mph
SW
|
|
Wednesday Night
Jul 1
|
Mostly Clear
|
74°F |
1 to 7 mph
SSW
|
|
Thursday
Jul 2
|
Sunny
|
95°F |
1 to 7 mph
SSW
|
|
Thursday Night
Jul 2
|
Mostly Clear
|
74°F |
1 to 5 mph
SW
|
|
Friday
Jul 3
|
Chance Showers And Thunderstorms
|
93°F |
2 to 6 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Bismarck.