Monthly outlook for Lame Deer, MT: average high 86.6°, average low 63.8°. That is 1.9° above the climate normal for August. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 18 August (94.4°), the coolest 24 August (55.8°).
86.6°/63.8°
Average high / low
+1.9°
Above normal
5 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.8°
83.4°
+2.5°
19 August – 28 August
84.5°
82.3°
+1.2°
29 August – 7 September
at normal
79.5°
—
August records over 66 years
100.9°5 August 1961All-time high
37.6°22 August 1966All-time low
Mon, 1093° / 60°0
93 °
Lame Deer, Monday, 10 August
Clear. High 93°, low 60°.
Pressure29.80 inHg
Wind9.3 mph N
Humidity24%
Visibility6.2 mi
Dew point45°
Tue, 1194° / 61°0
94 °
Lame Deer, Tuesday, 11 August
Clear. High 94°, low 61°.
Pressure29.83 inHg
Wind7.6 mph NE
Humidity31%
Visibility6.2 mi
Dew point52°
Wed, 1287° / 67°0.13
87 °
Lame Deer, Wednesday, 12 August
Light rain. High 87°, low 67°.
Pressure29.83 inHg
Wind12.4 mph NE
Humidity36%
Visibility6.2 mi
Dew point55°
Thu, 1383° / 63°0.12
83 °
Lame Deer, Thursday, 13 August
Light rain. High 83°, low 63°.
Pressure29.80 inHg
Wind20.2 mph SE
Humidity48%
Visibility—
Dew point56°
Fri, 1468° / 64°0.18
68 °
Lame Deer, Friday, 14 August
Light rain. High 68°, low 64°.
Pressure29.91 inHg
Wind17.3 mph N
Humidity81%
Visibility—
Dew point61°
Sat, 1581° / 62°0
81 °
Lame Deer, Saturday, 15 August
Overcast. High 81°, low 62°.
Pressure30.12 inHg
Wind10 mph SE
Humidity48%
Visibility—
Dew point52°
Sun, 1692° / 65°0.03
92 °
Lame Deer, Sunday, 16 August
Light rain. High 92°, low 65°.
Pressure29.94 inHg
Wind27.1 mph NW
Humidity36%
Visibility—
Dew point54°
Mon, 1791° / 67°0
91 °
Lame Deer, Monday, 17 August
Clear. High 91°, low 67°.
Pressure29.85 inHg
Wind13.3 mph W
Humidity27%
Visibility—
Dew point47°
Tue, 1894° / 67°0
94 °
Lame Deer, Tuesday, 18 August
Overcast. High 94°, low 67°.
Pressure29.80 inHg
Wind7.5 mph SW
Humidity26%
Visibility—
Dew point45°
Wed, 1985° / 67°0
85 °
Lame Deer, Wednesday, 19 August
Mostly clear. High 85°, low 67°.
Pressure29.94 inHg
Wind13.5 mph N
Humidity24%
Visibility—
Dew point38°
Thu, 2091° / 65°0
91 °
Lame Deer, Thursday, 20 August
Overcast. High 91°, low 65°.
Pressure29.88 inHg
Wind11.3 mph E
Humidity31%
Visibility—
Dew point46°
Fri, 2193° / 71°0.31
93 °
Lame Deer, Friday, 21 August
Rain. High 93°, low 71°.
Pressure29.74 inHg
Wind14.9 mph N
Humidity27%
Visibility—
Dew point49°
Sat, 2285° / 64°0.43
85 °
Lame Deer, Saturday, 22 August
Rain. High 85°, low 64°.
Pressure29.80 inHg
Wind9.4 mph E
Humidity43%
Visibility—
Dew point53°
Sun, 2378° / 61°0.02
78 °
Lame Deer, Sunday, 23 August
Light rain. High 78°, low 61°.
Pressure29.91 inHg
Wind11.8 mph NE
Humidity56%
Visibility—
Dew point55°
Mon, 2475° / 56°0.02
75 °
Lame Deer, Monday, 24 August
Light rain. High 75°, low 56°.
Pressure30.00 inHg
Wind12.8 mph NE
Humidity63%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 57°0.03
81 °
Lame Deer, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low57°
Average precipitation0.03 in
Chance of precipitation15%
Record high98° (1969)
Record low38° (1992)
Wed, 2682° / 58°0.05
82 °
Lame Deer, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.05 in
Chance of precipitation15%
Record high96° (2010)
Record low40° (1992)
Thu, 2782° / 58°0.03
82 °
Lame Deer, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.03 in
Chance of precipitation10%
Record high94° (1967)
Record low42° (1987)
Fri, 2882° / 58°0.01
82 °
Lame Deer, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.01 in
Chance of precipitation10%
Record high96° (2012)
Record low43° (1960)
Sat, 2982° / 58°0.01
82 °
Lame Deer, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.01 in
Chance of precipitation15%
Record high95° (2012)
Record low42° (1964)
Sun, 3082° / 58°0.05
82 °
Lame Deer, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.05 in
Chance of precipitation17%
Record high95° (1985)
Record low41° (1992)
Mon, 3180° / 57°0.02
80 °
Lame Deer, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low57°
Average precipitation0.02 in
Chance of precipitation12%
Record high94° (1991)
Record low43° (1974)
Tue, 0180° / 56°0.06
80 °
Lame Deer, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.06 in
Chance of precipitation13%
Record high97° (1983)
Record low45° (1974)
Wed, 0280° / 57°0.04
80 °
Lame Deer, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low57°
Average precipitation0.04 in
Chance of precipitation12%
Record high94° (2013)
Record low38° (1974)
Thu, 0379° / 56°0.05
79 °
Lame Deer, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.05 in
Chance of precipitation17%
Record high95° (2022)
Record low40° (1962)
Fri, 0479° / 55°0.05
79 °
Lame Deer, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.05 in
Chance of precipitation18%
Record high97° (2007)
Record low35° (1962)
Sat, 0579° / 55°0.04
79 °
Lame Deer, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.04 in
Chance of precipitation18%
Record high97° (2020)
Record low40° (1965)
Sun, 0678° / 55°0.05
78 °
Lame Deer, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.05 in
Chance of precipitation27%
Record high94° (1976)
Record low42° (1965)
Mon, 0777° / 54°0.04
77 °
Lame Deer, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low54°
Average precipitation0.04 in
Chance of precipitation22%
Record high101° (2022)
Record low39° (2020)
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 Lame Deer, 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 Lame Deer, 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.