Weather in De Kalb, MO
De Kalb, Sunday, 9 August, 01:51
Overcast. Feels like 79°. High 100°, low 76°.
Monthly outlook for De Kalb, MO: average high 100.1°, average low 72.7°. That is 8.4° above the climate normal for August. Precipitation is expected on 8 days (about 1.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 August (117.3°), the coolest 14 August (64.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 93.4° | 84.9° | +4.7° |
| 19 August – 28 August | 111.2° | 85° | +14.6° |
| 29 August – 7 September | at normal | 82.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — St. Joseph (13 mi).
0De Kalb, Monday, 10 August
Overcast. High 94°, low 76°.
0.04
De Kalb, Tuesday, 11 August
Light rain. High 106°, low 77°.
0.04De Kalb, Wednesday, 12 August
Light rain. High 93°, low 69°.
0.09De Kalb, Thursday, 13 August
Light rain. High 88°, low 69°.
0.09De Kalb, Friday, 14 August
Light rain. High 80°, low 65°.
0.06De Kalb, Saturday, 15 August
Light rain. High 86°, low 66°.
0De Kalb, Sunday, 16 August
Overcast. High 91°, low 68°.
0.11De Kalb, Monday, 17 August
Light rain. High 85°, low 68°.
0
De Kalb, Tuesday, 18 August
Partly cloudy. High 110°, low 70°.
0
De Kalb, Wednesday, 19 August
Clear. High 115°, low 79°.
0De Kalb, Thursday, 20 August
Clear. High 117°, low 83°.
0
De Kalb, Friday, 21 August
Mostly clear. High 112°, low 74°.
0De Kalb, Saturday, 22 August
Light rain. High 114°, low 83°.
0.44De Kalb, Sunday, 23 August
Rain. High 107°, low 72°.
0.23De Kalb, Monday, 24 August
Light rain. High 101°, low 69°.
0.18De Kalb, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.2
De Kalb, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11De Kalb, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16De Kalb, Friday, 28 August
Climate normal for this date — 60-year average.
0.07De Kalb, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13De Kalb, Sunday, 30 August
Climate normal for this date — 60-year average.
0.15De Kalb, Monday, 31 August
Climate normal for this date — 60-year average.
0.14De Kalb, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09De Kalb, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.07De Kalb, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09De Kalb, Friday, 4 September
Climate normal for this date — 60-year average.
0.11De Kalb, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09De Kalb, Sunday, 6 September
Climate normal for this date — 60-year average.
0.14De Kalb, Monday, 7 September
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 De Kalb, MO 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 De Kalb, MO 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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