Weather in Saint Helena, MD
Saint Helena, Sunday, 9 August, 03:51
Partly cloudy. Feels like 75°. High 87°, low 74°.
Monthly outlook for Saint Helena, MD: average high 86.6°, average low 72.2°. That is 2° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 22 August (93.4°), the coolest 16 August (63.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.6° | 83.7° | +0.5° |
| 19 August – 28 August | 90.1° | 82.4° | +4.3° |
| 29 August – 7 September | at normal | 81.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Baltimore (6 mi).
0
Saint Helena, Monday, 10 August
Partly cloudy. High 88°, low 73°.
0.08
Saint Helena, Tuesday, 11 August
Rain. High 92°, low 74°.
0.04Saint Helena, Wednesday, 12 August
Light rain. High 91°, low 76°.
0Saint Helena, Thursday, 13 August
Light rain. High 87°, low 75°.
0
Saint Helena, Friday, 14 August
Overcast. High 82°, low 67°.
0Saint Helena, Saturday, 15 August
Partly cloudy. High 79°, low 65°.
0Saint Helena, Sunday, 16 August
Overcast. High 81°, low 63°.
0.22Saint Helena, Monday, 17 August
Rain. High 75°, low 70°.
0.01Saint Helena, Tuesday, 18 August
Light rain. High 83°, low 69°.
0
Saint Helena, Wednesday, 19 August
Clear. High 86°, low 71°.
0Saint Helena, Thursday, 20 August
Partly cloudy. High 86°, low 73°.
0.14Saint Helena, Friday, 21 August
Light rain. High 93°, low 75°.
0Saint Helena, Saturday, 22 August
Overcast. High 93°, low 79°.
0.01Saint Helena, Sunday, 23 August
Light rain. High 90°, low 76°.
0.15Saint Helena, Monday, 24 August
Rain. High 92°, low 75°.
0.06Saint Helena, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07
Saint Helena, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.17
Saint Helena, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Saint Helena, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Saint Helena, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Saint Helena, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Saint Helena, Monday, 31 August
Climate normal for this date — 60-year average.
0.16Saint Helena, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Saint Helena, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Saint Helena, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Saint Helena, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Saint Helena, Saturday, 5 September
Climate normal for this date — 60-year average.
0.24Saint Helena, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Saint Helena, 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 Saint Helena, MD 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 Saint Helena, MD 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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