Monthly outlook for Fort Belknap Agency, MT: average high 89.3°, average low 63.7°. That is 4.5° above the climate normal for August. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 24 August (100.4°), the coolest 10 August (52.6°).
89.3°/63.7°
Average high / low
+4.5°
Above normal
2 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.4°
81.8°
+2°
19 August – 28 August
95.8°
80.2°
+8.7°
29 August – 7 September
at normal
77.2°
—
August records over 66 years
105.3°11 August 2018All-time high
35.2°25 August 1992All-time low
Mon, 1085° / 53°0
85 °
Fort Belknap Agency, Monday, 10 August
Clear. High 85°, low 53°.
Pressure29.85 inHg
Wind13.3 mph E
Humidity32%
Visibility6.2 mi
Dew point47°
Tue, 1189° / 63°0
89 °
Fort Belknap Agency, Tuesday, 11 August
Clear. High 89°, low 63°.
Pressure29.88 inHg
Wind10.5 mph NW
Humidity24%
Visibility6.2 mi
Dew point43°
Wed, 1285° / 60°0
85 °
Fort Belknap Agency, Wednesday, 12 August
Clear. High 85°, low 60°.
Pressure29.91 inHg
Wind15.5 mph E
Humidity33%
Visibility6.2 mi
Dew point48°
Thu, 1381° / 62°0.27
81 °
Fort Belknap Agency, Thursday, 13 August
Rain. High 81°, low 62°.
Pressure29.91 inHg
Wind15.2 mph E
Humidity38%
Visibility6.2 mi
Dew point49°
Fri, 1475° / 61°0.16
75 °
Fort Belknap Agency, Friday, 14 August
Rain. High 75°, low 61°.
Pressure30.00 inHg
Wind16.2 mph NW
Humidity62%
Visibility—
Dew point53°
Sat, 1584° / 57°0.03
84 °
Fort Belknap Agency, Saturday, 15 August
Light rain. High 84°, low 57°.
Pressure30.09 inHg
Wind9.8 mph E
Humidity44%
Visibility—
Dew point48°
Sun, 1693° / 63°0.03
93 °
Fort Belknap Agency, Sunday, 16 August
Light rain. High 93°, low 63°.
Pressure29.97 inHg
Wind9.1 mph SE
Humidity36%
Visibility—
Dew point52°
Mon, 1795° / 73°0
95 °
Fort Belknap Agency, Monday, 17 August
Overcast. High 95°, low 73°.
Pressure29.74 inHg
Wind23.7 mph W
Humidity17%
Visibility—
Dew point40°
Tue, 1884° / 65°0
84 °
Fort Belknap Agency, Tuesday, 18 August
Partly cloudy. High 84°, low 65°.
Pressure30.00 inHg
Wind9.1 mph W
Humidity33%
Visibility—
Dew point45°
Wed, 1994° / 66°0
94 °
Fort Belknap Agency, Wednesday, 19 August
Clear. High 94°, low 66°.
Pressure29.88 inHg
Wind15.6 mph W
Humidity19%
Visibility—
Dew point39°
Thu, 2098° / 69°0
98 °
Fort Belknap Agency, Thursday, 20 August
Clear. High 98°, low 69°.
Pressure29.74 inHg
Wind22.2 mph NW
Humidity12%
Visibility—
Dew point31°
Fri, 2187° / 66°0
87 °
Fort Belknap Agency, Friday, 21 August
Mostly clear. High 87°, low 66°.
Pressure29.88 inHg
Wind11.8 mph E
Humidity34%
Visibility—
Dew point48°
Sat, 2295° / 67°0
95 °
Fort Belknap Agency, Saturday, 22 August
Clear. High 95°, low 67°.
Pressure29.94 inHg
Wind15.8 mph SE
Humidity25%
Visibility—
Dew point45°
Sun, 23100° / 69°0
100 °
Fort Belknap Agency, Sunday, 23 August
Clear. High 100°, low 69°.
Pressure29.88 inHg
Wind13.4 mph NW
Humidity15%
Visibility—
Dew point36°
Mon, 24100° / 70°0
100 °
Fort Belknap Agency, Monday, 24 August
Clear. High 100°, low 70°.
Pressure29.85 inHg
Wind24.4 mph N
Humidity12%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2579° / 56°0.02
79 °
Fort Belknap Agency, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.02 in
Chance of precipitation8%
Record high99° (2008)
Record low35° (1992)
Wed, 2680° / 55°0.03
80 °
Fort Belknap Agency, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low55°
Average precipitation0.03 in
Chance of precipitation12%
Record high97° (2010)
Record low42° (1975)
Thu, 2780° / 56°0.02
80 °
Fort Belknap Agency, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.02 in
Chance of precipitation13%
Record high96° (1971)
Record low44° (2004)
Fri, 2880° / 56°0.02
80 °
Fort Belknap Agency, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.02 in
Chance of precipitation17%
Record high97° (2012)
Record low44° (1977)
Sat, 2979° / 55°0.03
79 °
Fort Belknap Agency, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.03 in
Chance of precipitation12%
Record high96° (2005)
Record low44° (1962)
Sun, 3079° / 56°0.03
79 °
Fort Belknap Agency, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.03 in
Chance of precipitation18%
Record high94° (1991)
Record low42° (1992)
Mon, 3178° / 54°0.04
78 °
Fort Belknap Agency, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.04 in
Chance of precipitation12%
Record high98° (1991)
Record low40° (1965)
Tue, 0178° / 54°0.03
78 °
Fort Belknap Agency, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.03 in
Chance of precipitation13%
Record high96° (1983)
Record low38° (1974)
Wed, 0278° / 54°0.02
78 °
Fort Belknap Agency, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.02 in
Chance of precipitation8%
Record high95° (1998)
Record low38° (1974)
Thu, 0377° / 54°0.01
77 °
Fort Belknap Agency, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low54°
Average precipitation0.01 in
Chance of precipitation7%
Record high101° (2022)
Record low32° (1962)
Fri, 0476° / 54°0.02
76 °
Fort Belknap Agency, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low54°
Average precipitation0.02 in
Chance of precipitation13%
Record high94° (2003)
Record low36° (1962)
Sat, 0576° / 53°0.04
76 °
Fort Belknap Agency, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low53°
Average precipitation0.04 in
Chance of precipitation13%
Record high94° (1967)
Record low39° (1965)
Sun, 0675° / 52°0.03
75 °
Fort Belknap Agency, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0.03 in
Chance of precipitation13%
Record high96° (1988)
Record low36° (1992)
Mon, 0774° / 51°0.07
74 °
Fort Belknap Agency, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.07 in
Chance of precipitation20%
Record high101° (2022)
Record low37° (1986)
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 Fort Belknap Agency, MT 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 Fort Belknap Agency, MT 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.