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As of 21:38 CDT

Weather in Bismarck, IL

73°Current weather

Bismarck, Saturday, 8 August, 21:38

Clear. Feels like 74°. High 86°, low 71°.

Pressure30.03 inHg
Wind3.4 mph N
Humidity92%
Visibility6.2 mi
Dew point70°
Sun, 0992° / 69°0Mostly clear
92 °Mostly clear

Bismarck, Sunday, 9 August

Mostly clear. High 92°, low 69°.

Pressure30.00 inHg
Wind13.2 mph SW
Humidity75%
Visibility6.2 mi
Dew point75°
Mon, 1089° / 77°0.02Light rain
89 °Light rain

Bismarck, Monday, 10 August

Light rain. High 89°, low 77°.

Pressure29.94 inHg
Wind11.4 mph SW
Humidity72%
Visibility6.2 mi
Dew point75°
Tue, 1184° / 71°0.22Rain
84 °Rain

Bismarck, Tuesday, 11 August

Rain. High 84°, low 71°.

Pressure29.88 inHg
Wind5.3 mph NE
Humidity86%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 70°0.03Light rain
83 °Light rain

Bismarck, Wednesday, 12 August

Light rain. High 83°, low 70°.

Pressure29.85 inHg
Wind2.2 mph NW
Humidity77%
Visibility6.2 mi
Dew point73°
Thu, 1378° / 65°0.09Light rain
78 °Light rain

Bismarck, Thursday, 13 August

Light rain. High 78°, low 65°.

Pressure30.00 inHg
Wind10.8 mph E
Humidity68%
Visibility—
Dew point65°
Fri, 1477° / 61°0Partly cloudy
77 °Partly cloudy

Bismarck, Friday, 14 August

Partly cloudy. High 77°, low 61°.

Pressure30.09 inHg
Wind7.5 mph NE
Humidity70%
Visibility—
Dew point64°
Sat, 1567° / 58°0.06Light rain
67 °Light rain

Bismarck, Saturday, 15 August

Light rain. High 67°, low 58°.

Pressure30.27 inHg
Wind9.6 mph E
Humidity95%
Visibility—
Dew point62°
Sun, 1672° / 60°0Overcast
72 °Overcast

Bismarck, Sunday, 16 August

Overcast. High 72°, low 60°.

Pressure30.12 inHg
Wind6.3 mph E
Humidity81%
Visibility—
Dew point62°
Mon, 1776° / 63°0.13Light rain
76 °Light rain

Bismarck, Monday, 17 August

Light rain. High 76°, low 63°.

Pressure30.06 inHg
Wind6.4 mph N
Humidity92%
Visibility—
Dew point65°
Tue, 1882° / 64°0Overcast
82 °Overcast

Bismarck, Tuesday, 18 August

Overcast. High 82°, low 64°.

Pressure30.00 inHg
Wind5.1 mph S
Humidity73%
Visibility—
Dew point68°
Wed, 1978° / 62°0.05Light rain
78 °Light rain

Bismarck, Wednesday, 19 August

Light rain. High 78°, low 62°.

Pressure29.91 inHg
Wind12.3 mph NW
Humidity90%
Visibility—
Dew point72°
Thu, 2072° / 54°0.01Light rain
72 °Light rain

Bismarck, Thursday, 20 August

Light rain. High 72°, low 54°.

Pressure30.03 inHg
Wind14.6 mph N
Humidity63%
Visibility—
Dew point57°
Fri, 2173° / 53°0Overcast
73 °Overcast

Bismarck, Friday, 21 August

Overcast. High 73°, low 53°.

Pressure30.09 inHg
Wind7.2 mph NE
Humidity64%
Visibility—
Dew point56°
Sat, 2277° / 56°0.04Light rain
77 °Light rain

Bismarck, Saturday, 22 August

Light rain. High 77°, low 56°.

Pressure29.88 inHg
Wind11.8 mph S
Humidity73%
Visibility—
Dew point64°
Sun, 2386° / 67°0Mostly clear
86 °Mostly clear

Bismarck, Sunday, 23 August

Mostly clear. High 86°, low 67°.

Pressure29.94 inHg
Wind10.8 mph W
Humidity62%
Visibility—
Dew point67°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Bismarck, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Bismarck, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.