Weather in Bismarck, IL
Bismarck, Tuesday, 20 October, 10:04
Partly cloudy. Feels like 62°. High 69°, low 42°.
Monthly outlook for Bismarck, IL: average high 61.5°, average low 42°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 25 October (74.1°), the coolest 31 October (30.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 64.8° | 60.2° | +2.6° |
| 30 October – 8 November | 56.1° | 56.3° | -0.1° |
| 9 November – 18 November | at normal | 50.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Pence (9 mi).
0
Bismarck, Wednesday, 21 October
Clear. High 71°, low 41°.
0Bismarck, Thursday, 22 October
Clear. High 70°, low 45°.
0Bismarck, Friday, 23 October
Clear. High 67°, low 48°.
0
Bismarck, Saturday, 24 October
Mostly clear. High 68°, low 47°.
0
Bismarck, Sunday, 25 October
Overcast. High 74°, low 51°.
0Bismarck, Monday, 26 October
Overcast. High 73°, low 54°.
0.06
Bismarck, Tuesday, 27 October
Light rain. High 48°, low 38°.
0Bismarck, Wednesday, 28 October
Clear. High 50°, low 32°.
0Bismarck, Thursday, 29 October
Clear. High 57°, low 36°.
0Bismarck, Friday, 30 October
Clear. High 46°, low 34°.
0Bismarck, Saturday, 31 October
Partly cloudy. High 52°, low 30°.
0Bismarck, Sunday, 1 November
Partly cloudy. High 56°, low 38°.
0Bismarck, Monday, 2 November
Partly cloudy. High 61°, low 43°.
0Bismarck, Tuesday, 3 November
Overcast. High 63°, low 42°.
0.41Bismarck, Wednesday, 4 November
Rain. High 59°, low 51°.
0.11Bismarck, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07
Bismarck, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Bismarck, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Bismarck, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Bismarck, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Bismarck, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Bismarck, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Bismarck, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Bismarck, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Bismarck, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Bismarck, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Bismarck, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Bismarck, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.14Bismarck, Wednesday, 18 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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