Monthly outlook for New Martinsville, WV: average high 85.5°, average low 66.2°. That is 2.4° above the climate normal for August. Precipitation is expected on 8 days (about 2.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 18 August (97°), the coolest 20 August (62.7°).
85.5°/66.2°
Average high / low
+2.4°
Above normal
8 / 6
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85°
81.2°
+2.1°
19 August – 28 August
86.2°
81.1°
+2.8°
29 August – 7 September
at normal
79.8°
—
August records over 66 years
99.1°17 August 1988All-time high
47.5°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Middlebourne (12 mi).
Mon, 1081° / 68°0.82
81 °
New Martinsville, Monday, 10 August
Heavy rain. High 81°, low 68°.
Pressure30.00 inHg
Wind6.9 mph SW
Humidity73%
Visibility6.2 mi
Dew point66°
Tue, 1183° / 67°0.27
83 °
New Martinsville, Tuesday, 11 August
Heavy rain. High 83°, low 67°.
Pressure29.97 inHg
Wind6.1 mph W
Humidity70%
Visibility6.2 mi
Dew point67°
Wed, 1285° / 65°0.01
85 °
New Martinsville, Wednesday, 12 August
Light rain. High 85°, low 65°.
Pressure29.85 inHg
Wind4.1 mph SW
Humidity95%
Visibility6.2 mi
Dew point69°
Thu, 1386° / 64°0
86 °
New Martinsville, Thursday, 13 August
Clear. High 86°, low 64°.
Pressure29.97 inHg
Wind1.7 mph N
Humidity56%
Visibility6.2 mi
Dew point65°
Fri, 1480° / 64°0.02
80 °
New Martinsville, Friday, 14 August
Light rain. High 80°, low 64°.
Pressure30.09 inHg
Wind4.1 mph E
Humidity79%
Visibility—
Dew point63°
Sat, 1575° / 67°0.09
75 °
New Martinsville, Saturday, 15 August
Light rain. High 75°, low 67°.
Pressure30.15 inHg
Wind4.2 mph S
Humidity97%
Visibility—
Dew point72°
Sun, 1697° / 70°0.06
97 °
New Martinsville, Sunday, 16 August
Light rain. High 97°, low 70°.
Pressure29.83 inHg
Wind15.4 mph SW
Humidity36%
Visibility—
Dew point62°
Mon, 1782° / 64°0
82 °
New Martinsville, Monday, 17 August
Overcast. High 82°, low 64°.
Pressure30.03 inHg
Wind4.5 mph N
Humidity48%
Visibility—
Dew point58°
Tue, 1897° / 67°0.02
97 °
New Martinsville, Tuesday, 18 August
Light rain. High 97°, low 67°.
Pressure29.91 inHg
Wind10.6 mph SW
Humidity41%
Visibility—
Dew point64°
Wed, 1991° / 68°0
91 °
New Martinsville, Wednesday, 19 August
Mostly clear. High 91°, low 68°.
Pressure29.97 inHg
Wind9.6 mph NW
Humidity38%
Visibility—
Dew point60°
Thu, 2082° / 63°0.06
82 °
New Martinsville, Thursday, 20 August
Light rain. High 82°, low 63°.
Pressure29.97 inHg
Wind8 mph W
Humidity56%
Visibility—
Dew point63°
Fri, 2184° / 68°0.96
84 °
New Martinsville, Friday, 21 August
Rain. High 84°, low 68°.
Pressure29.83 inHg
Wind5.7 mph SW
Humidity71%
Visibility—
Dew point70°
Sat, 2284° / 67°0.07
84 °
New Martinsville, Saturday, 22 August
Light rain. High 84°, low 67°.
Pressure29.88 inHg
Wind4.5 mph N
Humidity57%
Visibility—
Dew point65°
Sun, 2389° / 64°0
89 °
New Martinsville, Sunday, 23 August
Clear. High 89°, low 64°.
Pressure29.97 inHg
Wind4.2 mph W
Humidity44%
Visibility—
Dew point61°
Mon, 2488° / 64°0
88 °
New Martinsville, Monday, 24 August
Clear. High 88°, low 64°.
Pressure30.03 inHg
Wind6.8 mph W
Humidity37%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 64°0.07
81 °
New Martinsville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation32%
Record high91° (2024)
Record low54° (1977)
Wed, 2682° / 65°0.08
82 °
New Martinsville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation30%
Record high93° (1993)
Record low54° (2025)
Thu, 2782° / 65°0.15
82 °
New Martinsville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.15 in
Chance of precipitation40%
Record high96° (2024)
Record low51° (2025)
Fri, 2882° / 66°0.13
82 °
New Martinsville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation30%
Record high98° (2024)
Record low50° (2025)
Sat, 2981° / 65°0.09
81 °
New Martinsville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation35%
Record high93° (2024)
Record low47° (1986)
Sun, 3081° / 64°0.11
81 °
New Martinsville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high95° (2024)
Record low49° (1986)
Mon, 3180° / 64°0.12
80 °
New Martinsville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation35%
Record high94° (2012)
Record low51° (1976)
Tue, 0180° / 63°0.1
80 °
New Martinsville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2010)
Record low50° (1967)
Wed, 0280° / 63°0.12
80 °
New Martinsville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation37%
Record high94° (2010)
Record low51° (1967)
Thu, 0380° / 63°0.11
80 °
New Martinsville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation32%
Record high92° (2011)
Record low51° (1967)
Fri, 0479° / 63°0.09
79 °
New Martinsville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation23%
Record high90° (2018)
Record low50° (1997)
Sat, 0579° / 62°0.11
79 °
New Martinsville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (2018)
Record low49° (1997)
Sun, 0679° / 62°0.13
79 °
New Martinsville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (2007)
Record low50° (1984)
Mon, 0779° / 61°0.12
79 °
New Martinsville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.12 in
Chance of precipitation22%
Record high91° (2010)
Record low49° (2025)
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 New Martinsville, WV 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 New Martinsville, WV 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.