Monthly outlook for Bismarck, WV: average high 75.4°, average low 57.2°. That is 0.6° below the climate normal for August. Precipitation is expected on 8 days (about 1.2 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 10 August (84.5°), the coolest 22 August (49°).
75.4°/57.2°
Average high / low
−0.6°
Below normal
8 / 7
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
76.1°
76.9°
-0.4°
18 August – 27 August
74.1°
76.1°
-1.1°
28 August – 6 September
at normal
75.2°
—
August records over 66 years
91.6°13 August 1999All-time high
42.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Elk Garden (12 mi).
Sun, 0980° / 63°0
80 °
Bismarck, Sunday, 9 August
Clear. High 80°, low 63°.
Pressure30.09 inHg
Wind9.6 mph W
Humidity52%
Visibility6.2 mi
Dew point60°
Mon, 1085° / 61°0.09
85 °
Bismarck, Monday, 10 August
Light rain. High 85°, low 61°.
Pressure30.03 inHg
Wind11.1 mph W
Humidity53%
Visibility6.2 mi
Dew point62°
Tue, 1176° / 63°0.4
76 °
Bismarck, Tuesday, 11 August
Heavy rain. High 76°, low 63°.
Pressure30.00 inHg
Wind13 mph W
Humidity68%
Visibility6.2 mi
Dew point62°
Wed, 1278° / 63°0.07
78 °
Bismarck, Wednesday, 12 August
Light rain. High 78°, low 63°.
Pressure29.83 inHg
Wind16.8 mph W
Humidity69%
Visibility6.2 mi
Dew point64°
Thu, 1372° / 55°0.07
72 °
Bismarck, Thursday, 13 August
Light rain. High 72°, low 55°.
Pressure29.94 inHg
Wind13.3 mph NW
Humidity42%
Visibility—
Dew point46°
Fri, 1471° / 53°0
71 °
Bismarck, Friday, 14 August
Overcast. High 71°, low 53°.
Pressure30.09 inHg
Wind7.9 mph NW
Humidity75%
Visibility—
Dew point52°
Sat, 1572° / 51°0
72 °
Bismarck, Saturday, 15 August
Overcast. High 72°, low 51°.
Pressure30.21 inHg
Wind9 mph NW
Humidity35%
Visibility—
Dew point41°
Sun, 1678° / 51°0
78 °
Bismarck, Sunday, 16 August
Partly cloudy. High 78°, low 51°.
Pressure30.12 inHg
Wind4.4 mph SE
Humidity38%
Visibility—
Dew point47°
Mon, 1772° / 60°0.23
72 °
Bismarck, Monday, 17 August
Light rain. High 72°, low 60°.
Pressure30.06 inHg
Wind3.9 mph SE
Humidity69%
Visibility—
Dew point60°
Tue, 1873° / 61°0.13
73 °
Bismarck, Tuesday, 18 August
Light rain. High 73°, low 61°.
Pressure30.03 inHg
Wind3.8 mph SE
Humidity69%
Visibility—
Dew point61°
Wed, 1981° / 59°0
81 °
Bismarck, Wednesday, 19 August
Mostly clear. High 81°, low 59°.
Pressure29.88 inHg
Wind9.4 mph W
Humidity40%
Visibility—
Dew point52°
Thu, 2064° / 55°0.06
64 °
Bismarck, Thursday, 20 August
Light rain. High 64°, low 55°.
Pressure29.85 inHg
Wind14.7 mph W
Humidity72%
Visibility—
Dew point51°
Fri, 2169° / 51°0
69 °
Bismarck, Friday, 21 August
Clear. High 69°, low 51°.
Pressure30.00 inHg
Wind11.1 mph NW
Humidity37%
Visibility—
Dew point39°
Sat, 2279° / 49°0.01
79 °
Bismarck, Saturday, 22 August
Light rain. High 79°, low 49°.
Pressure30.00 inHg
Wind3.6 mph S
Humidity31%
Visibility—
Dew point42°
Sun, 2379° / 59°0.13
79 °
Bismarck, Sunday, 23 August
Light rain. High 79°, low 59°.
Pressure29.94 inHg
Wind15.4 mph W
Humidity67%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 59°0.07
76 °
Bismarck, Monday, 24 August
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation30%
Record high88° (2007)
Record low47° (1971)
Tue, 2576° / 60°0.06
76 °
Bismarck, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.06 in
Chance of precipitation32%
Record high87° (2006)
Record low49° (1971)
Wed, 2677° / 60°0.07
77 °
Bismarck, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation28%
Record high87° (1993)
Record low49° (1963)
Thu, 2777° / 61°0.12
77 °
Bismarck, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.12 in
Chance of precipitation42%
Record high87° (1993)
Record low50° (2025)
Fri, 2877° / 61°0.1
77 °
Bismarck, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.1 in
Chance of precipitation42%
Record high90° (2024)
Record low47° (1968)
Sat, 2976° / 60°0.08
76 °
Bismarck, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.08 in
Chance of precipitation40%
Record high87° (1993)
Record low42° (1986)
Sun, 3076° / 59°0.07
76 °
Bismarck, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation28%
Record high87° (1993)
Record low44° (1965)
Mon, 3175° / 60°0.1
75 °
Bismarck, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.1 in
Chance of precipitation37%
Record high88° (1993)
Record low46° (1976)
Tue, 0174° / 59°0.13
74 °
Bismarck, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.13 in
Chance of precipitation38%
Record high87° (2010)
Record low44° (1967)
Wed, 0275° / 59°0.08
75 °
Bismarck, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.08 in
Chance of precipitation37%
Record high89° (2010)
Record low45° (1967)
Thu, 0375° / 59°0.07
75 °
Bismarck, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation35%
Record high88° (2011)
Record low48° (2025)
Fri, 0475° / 59°0.09
75 °
Bismarck, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.09 in
Chance of precipitation37%
Record high85° (2011)
Record low46° (1997)
Sat, 0574° / 58°0.13
74 °
Bismarck, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.13 in
Chance of precipitation37%
Record high85° (2018)
Record low44° (1997)
Sun, 0674° / 57°0.22
74 °
Bismarck, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.22 in
Chance of precipitation33%
Record high86° (1998)
Record low46° (1984)
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 Bismarck, 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 Bismarck, 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.