Monthly outlook for Horseshoe Curve, MD: average high 81.2°, average low 62.8°. That is 0.1° below the climate normal for August. Precipitation is expected on 8 days (about 2.6 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 16 August (92.3°), the coolest 18 August (59.6°).
81.2°/62.8°
Average high / low
−0.1°
Below normal
8 / 6
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81°
81.9°
-0.5°
19 August – 28 August
81.4°
81.2°
+0.1°
29 August – 7 September
at normal
79.6°
—
August records over 66 years
97.3°13 August 1999All-time high
45°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Keyser (15 mi).
Mon, 1082° / 66°0.13
82 °
Horseshoe Curve, Monday, 10 August
Rain. High 82°, low 66°.
Pressure30.00 inHg
Wind12.9 mph W
Humidity55%
Visibility6.2 mi
Dew point64°
Tue, 1181° / 62°1.67
81 °
Horseshoe Curve, Tuesday, 11 August
Heavy rain. High 81°, low 62°.
Pressure29.97 inHg
Wind10 mph W
Humidity73%
Visibility6.2 mi
Dew point64°
Wed, 1278° / 64°0
78 °
Horseshoe Curve, Wednesday, 12 August
Overcast. High 78°, low 64°.
Pressure29.83 inHg
Wind13.8 mph W
Humidity60%
Visibility6.2 mi
Dew point64°
Thu, 1380° / 61°0
80 °
Horseshoe Curve, Thursday, 13 August
Mostly clear. High 80°, low 61°.
Pressure29.97 inHg
Wind8.8 mph NW
Humidity54%
Visibility6.2 mi
Dew point59°
Fri, 1468° / 60°0
68 °
Horseshoe Curve, Friday, 14 August
Light rain. High 68°, low 60°.
Pressure30.12 inHg
Wind2.7 mph S
Humidity72%
Visibility—
Dew point56°
Sat, 1576° / 61°0.15
76 °
Horseshoe Curve, Saturday, 15 August
Rain. High 76°, low 61°.
Pressure30.15 inHg
Wind7.4 mph SW
Humidity65%
Visibility—
Dew point62°
Sun, 1692° / 64°0.07
92 °
Horseshoe Curve, Sunday, 16 August
Light rain. High 92°, low 64°.
Pressure29.83 inHg
Wind16.8 mph W
Humidity39%
Visibility—
Dew point61°
Mon, 1777° / 62°0
77 °
Horseshoe Curve, Monday, 17 August
Overcast. High 77°, low 62°.
Pressure30.03 inHg
Wind10.5 mph NW
Humidity51%
Visibility—
Dew point55°
Tue, 1891° / 60°0
91 °
Horseshoe Curve, Tuesday, 18 August
Light rain. High 91°, low 60°.
Pressure30.00 inHg
Wind8.1 mph W
Humidity52%
Visibility—
Dew point61°
Wed, 1984° / 64°0.06
84 °
Horseshoe Curve, Wednesday, 19 August
Light rain. High 84°, low 64°.
Pressure29.97 inHg
Wind14.7 mph NW
Humidity47%
Visibility—
Dew point60°
Thu, 2086° / 60°0
86 °
Horseshoe Curve, Thursday, 20 August
Partly cloudy. High 86°, low 60°.
Pressure29.94 inHg
Wind8.1 mph NW
Humidity36%
Visibility—
Dew point53°
Fri, 2181° / 65°0.22
81 °
Horseshoe Curve, Friday, 21 August
Light rain. High 81°, low 65°.
Pressure29.85 inHg
Wind13.2 mph W
Humidity81%
Visibility—
Dew point67°
Sat, 2276° / 65°0.25
76 °
Horseshoe Curve, Saturday, 22 August
Rain. High 76°, low 65°.
Pressure29.91 inHg
Wind5.4 mph NE
Humidity80%
Visibility—
Dew point66°
Sun, 2378° / 63°0.06
78 °
Horseshoe Curve, Sunday, 23 August
Light rain. High 78°, low 63°.
Pressure30.03 inHg
Wind6 mph SE
Humidity74%
Visibility—
Dew point66°
Mon, 2484° / 62°0
84 °
Horseshoe Curve, Monday, 24 August
Clear. High 84°, low 62°.
Pressure30.00 inHg
Wind8.7 mph NW
Humidity41%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 62°0.05
81 °
Horseshoe Curve, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high92° (2006)
Record low52° (1971)
Wed, 2682° / 63°0.05
82 °
Horseshoe Curve, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.05 in
Chance of precipitation30%
Record high92° (1993)
Record low53° (1963)
Thu, 2782° / 64°0.1
82 °
Horseshoe Curve, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.1 in
Chance of precipitation40%
Record high93° (1993)
Record low51° (2025)
Fri, 2882° / 64°0.09
82 °
Horseshoe Curve, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high97° (2024)
Record low49° (2025)
Sat, 2981° / 64°0.08
81 °
Horseshoe Curve, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high94° (2022)
Record low45° (1986)
Sun, 3081° / 62°0.07
81 °
Horseshoe Curve, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (2010)
Record low47° (1965)
Mon, 3180° / 63°0.08
80 °
Horseshoe Curve, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.08 in
Chance of precipitation28%
Record high92° (1993)
Record low49° (1976)
Tue, 0179° / 62°0.11
79 °
Horseshoe Curve, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation33%
Record high94° (2010)
Record low47° (1967)
Wed, 0280° / 62°0.07
80 °
Horseshoe Curve, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high95° (2010)
Record low48° (1967)
Thu, 0380° / 61°0.06
80 °
Horseshoe Curve, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.06 in
Chance of precipitation27%
Record high93° (2011)
Record low49° (2021)
Fri, 0480° / 62°0.07
80 °
Horseshoe Curve, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2023)
Record low49° (2024)
Sat, 0579° / 61°0.13
79 °
Horseshoe Curve, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.13 in
Chance of precipitation33%
Record high93° (2023)
Record low47° (1997)
Sun, 0678° / 60°0.22
78 °
Horseshoe Curve, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.22 in
Chance of precipitation28%
Record high94° (2023)
Record low47° (2000)
Mon, 0778° / 60°0.08
78 °
Horseshoe Curve, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.08 in
Chance of precipitation23%
Record high91° (2010)
Record low46° (1988)
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 Horseshoe Curve, 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 Horseshoe Curve, 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.