Monthly outlook for Sentinel Butte, ND: average high 81.8°, average low 58.5°. That is 0.4° above the climate normal for August. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 17 August (93.6°), the coolest 10 August (49.8°).
81.8°/58.5°
Average high / low
+0.4°
Above normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83.7°
81.3°
+1.4°
18 August – 27 August
78.6°
80.5°
-1.1°
28 August – 6 September
at normal
78.3°
—
August records over 66 years
103.3°20 August 2025All-time high
39.6°25 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Beach (8 mi).
Sun, 0987° / 53°0
87 °
Sentinel Butte, Sunday, 9 August
Overcast. High 87°, low 53°.
Pressure29.85 inHg
Wind13.5 mph E
Humidity27%
Visibility6.2 mi
Dew point44°
Mon, 1088° / 50°0
88 °
Sentinel Butte, Monday, 10 August
Overcast. High 88°, low 50°.
Pressure29.85 inHg
Wind12.8 mph NE
Humidity27%
Visibility6.2 mi
Dew point44°
Tue, 1189° / 57°0
89 °
Sentinel Butte, Tuesday, 11 August
Clear. High 89°, low 57°.
Pressure29.88 inHg
Wind10.8 mph E
Humidity26%
Visibility6.2 mi
Dew point45°
Wed, 1282° / 60°0.04
82 °
Sentinel Butte, Wednesday, 12 August
Light rain. High 82°, low 60°.
Pressure29.85 inHg
Wind13.5 mph E
Humidity38%
Visibility6.2 mi
Dew point53°
Thu, 1383° / 60°0.01
83 °
Sentinel Butte, Thursday, 13 August
Light rain. High 83°, low 60°.
Pressure29.94 inHg
Wind18.1 mph SE
Humidity40%
Visibility—
Dew point49°
Fri, 1472° / 64°0.54
72 °
Sentinel Butte, Friday, 14 August
Rain. High 72°, low 64°.
Pressure29.94 inHg
Wind20.3 mph SE
Humidity65%
Visibility—
Dew point58°
Sat, 1578° / 62°0
78 °
Sentinel Butte, Saturday, 15 August
Overcast. High 78°, low 62°.
Pressure30.15 inHg
Wind10.8 mph N
Humidity48%
Visibility—
Dew point51°
Sun, 1675° / 58°0.18
75 °
Sentinel Butte, Sunday, 16 August
Light rain. High 75°, low 58°.
Pressure30.09 inHg
Wind14.3 mph SE
Humidity54%
Visibility—
Dew point52°
Mon, 1794° / 63°0
94 °
Sentinel Butte, Monday, 17 August
Mostly clear. High 94°, low 63°.
Pressure29.83 inHg
Wind20.5 mph NW
Humidity19%
Visibility—
Dew point40°
Tue, 1876° / 59°0.05
76 °
Sentinel Butte, Tuesday, 18 August
Light rain. High 76°, low 59°.
Pressure30.00 inHg
Wind14.2 mph NE
Humidity35%
Visibility—
Dew point45°
Wed, 1977° / 55°0
77 °
Sentinel Butte, Wednesday, 19 August
Overcast. High 77°, low 55°.
Pressure30.09 inHg
Wind14.2 mph SE
Humidity38%
Visibility—
Dew point44°
Thu, 2088° / 60°0.06
88 °
Sentinel Butte, Thursday, 20 August
Light rain. High 88°, low 60°.
Pressure29.85 inHg
Wind15.8 mph S
Humidity45%
Visibility—
Dew point55°
Fri, 2170° / 61°0.97
70 °
Sentinel Butte, Friday, 21 August
Heavy rain. High 70°, low 61°.
Pressure29.71 inHg
Wind16.5 mph NE
Humidity94%
Visibility—
Dew point60°
Sat, 2274° / 60°0
74 °
Sentinel Butte, Saturday, 22 August
Partly cloudy. High 74°, low 60°.
Pressure29.91 inHg
Wind19.2 mph NW
Humidity35%
Visibility—
Dew point40°
Sun, 2386° / 59°0
86 °
Sentinel Butte, Sunday, 23 August
Partly cloudy. High 86°, low 59°.
Pressure29.83 inHg
Wind17.2 mph S
Humidity25%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 60°0.07
81 °
Sentinel Butte, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low60°
Average precipitation0.07 in
Chance of precipitation32%
Record high96° (2000)
Record low46° (1966)
Tue, 2579° / 58°0.03
79 °
Sentinel Butte, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low58°
Average precipitation0.03 in
Chance of precipitation10%
Record high96° (1991)
Record low40° (1992)
Wed, 2679° / 58°0.06
79 °
Sentinel Butte, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low58°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (2000)
Record low44° (1992)
Thu, 2780° / 59°0.05
80 °
Sentinel Butte, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0.05 in
Chance of precipitation23%
Record high98° (2003)
Record low47° (1987)
Fri, 2880° / 59°0.04
80 °
Sentinel Butte, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0.04 in
Chance of precipitation22%
Record high96° (2012)
Record low47° (1988)
Sat, 2980° / 58°0.06
80 °
Sentinel Butte, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low58°
Average precipitation0.06 in
Chance of precipitation17%
Record high98° (2012)
Record low44° (1974)
Sun, 3080° / 58°0.03
80 °
Sentinel Butte, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low58°
Average precipitation0.03 in
Chance of precipitation18%
Record high96° (2008)
Record low42° (1992)
Mon, 3178° / 58°0.04
78 °
Sentinel Butte, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low58°
Average precipitation0.04 in
Chance of precipitation25%
Record high92° (2016)
Record low40° (1994)
Tue, 0178° / 57°0.03
78 °
Sentinel Butte, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low57°
Average precipitation0.03 in
Chance of precipitation15%
Record high97° (2004)
Record low43° (1965)
Wed, 0278° / 58°0.05
78 °
Sentinel Butte, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low58°
Average precipitation0.05 in
Chance of precipitation18%
Record high94° (2015)
Record low38° (1974)
Thu, 0378° / 56°0.08
78 °
Sentinel Butte, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.08 in
Chance of precipitation22%
Record high95° (2005)
Record low40° (1962)
Fri, 0478° / 56°0.05
78 °
Sentinel Butte, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.05 in
Chance of precipitation17%
Record high98° (1998)
Record low40° (1962)
Sat, 0577° / 56°0.07
77 °
Sentinel Butte, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low56°
Average precipitation0.07 in
Chance of precipitation18%
Record high99° (1978)
Record low34° (1965)
Sun, 0676° / 55°0.06
76 °
Sentinel Butte, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.06 in
Chance of precipitation23%
Record high98° (1976)
Record low37° (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 Sentinel Butte, ND 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 Sentinel Butte, ND 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.