Weather in Bethesda, IA
Bethesda, Sunday, 9 August, 01:13
Overcast. Feels like 77°. High 94°, low 75°.
Monthly outlook for Bethesda, IA: average high 83.8°, average low 66.1°. That is 0.6° above the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 11 August (99.2°), the coolest 21 August (54.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.3° | 82.7° | +0.9° |
| 19 August – 28 August | 83° | 82.9° | +0.1° |
| 29 August – 7 September | at normal | 80.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — New Market (13 mi).
0
Bethesda, Monday, 10 August
Light rain. High 90°, low 73°.
0.16Bethesda, Tuesday, 11 August
Heavy rain. High 99°, low 76°.
0.55Bethesda, Wednesday, 12 August
Heavy rain. High 87°, low 68°.
0.65Bethesda, Thursday, 13 August
Rain. High 72°, low 67°.
0.19Bethesda, Friday, 14 August
Light rain. High 76°, low 63°.
0.23Bethesda, Saturday, 15 August
Light rain. High 68°, low 62°.
0Bethesda, Sunday, 16 August
Overcast. High 81°, low 62°.
0.06Bethesda, Monday, 17 August
Light rain. High 84°, low 67°.
0.13Bethesda, Tuesday, 18 August
Light rain. High 91°, low 70°.
0Bethesda, Wednesday, 19 August
Overcast. High 81°, low 66°.
0Bethesda, Thursday, 20 August
Overcast. High 75°, low 58°.
0Bethesda, Friday, 21 August
Overcast. High 71°, low 54°.
0
Bethesda, Saturday, 22 August
Partly cloudy. High 89°, low 60°.
0Bethesda, Sunday, 23 August
Overcast. High 91°, low 65°.
0Bethesda, Monday, 24 August
Overcast. High 92°, low 69°.
0.13Bethesda, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.21
Bethesda, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Bethesda, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13Bethesda, Friday, 28 August
Climate normal for this date — 60-year average.
0.06
Bethesda, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Bethesda, Sunday, 30 August
Climate normal for this date — 60-year average.
0.13Bethesda, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Bethesda, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Bethesda, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Bethesda, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13Bethesda, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Bethesda, Saturday, 5 September
Climate normal for this date — 60-year average.
0.08Bethesda, Sunday, 6 September
Climate normal for this date — 60-year average.
0.18Bethesda, 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 Bethesda, IA 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 Bethesda, IA 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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