Monthly outlook for Arlee, MT: average high 64.1°, average low 41.5°. That is 3.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 7 October (79.4°), the coolest 12 October (31.5°).
64.1°/41.5°
Average high / low
+3.1°
Above normal
2 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 October – 15 October
63.8°
59.3°
+2.5°
16 October – 25 October
64.6°
55.7°
+4.9°
26 October – 4 November
at normal
48.6°
—
October records over 66 years
85.5°1 October 1992All-time high
-5.8°25 October 2020All-time low
Wed, 0779° / 43°0
79 °
Arlee, Wednesday, 7 October
Mostly clear. High 79°, low 43°.
Pressure30.09 inHg
Wind0.9 mph N
Humidity32%
Visibility6.2 mi
Dew point36°
Thu, 0876° / 43°0
76 °
Arlee, Thursday, 8 October
Overcast. High 76°, low 43°.
Pressure30.03 inHg
Wind1.8 mph S
Humidity26%
Visibility6.2 mi
Dew point33°
Fri, 0977° / 51°0
77 °
Arlee, Friday, 9 October
Overcast. High 77°, low 51°.
Pressure29.65 inHg
Wind8.2 mph SE
Humidity28%
Visibility6.2 mi
Dew point35°
Sat, 1056° / 49°0.11
56 °
Arlee, Saturday, 10 October
Light rain. High 56°, low 49°.
Pressure29.77 inHg
Wind5.2 mph NE
Humidity63%
Visibility6.2 mi
Dew point38°
Sun, 1146° / 40°0.05
46 °
Arlee, Sunday, 11 October
Light rain. High 46°, low 40°.
Pressure30.12 inHg
Wind6.6 mph E
Humidity63%
Visibility—
Dew point32°
Mon, 1253° / 32°0
53 °
Arlee, Monday, 12 October
Clear. High 53°, low 32°.
Pressure30.18 inHg
Wind5 mph NW
Humidity61%
Visibility—
Dew point30°
Tue, 1365° / 36°0
65 °
Arlee, Tuesday, 13 October
Clear. High 65°, low 36°.
Pressure29.85 inHg
Wind4.5 mph NW
Humidity48%
Visibility—
Dew point33°
Wed, 1455° / 41°0.01
55 °
Arlee, Wednesday, 14 October
Light rain. High 55°, low 41°.
Pressure30.03 inHg
Wind11.2 mph W
Humidity54%
Visibility—
Dew point33°
Thu, 1554° / 34°0
54 °
Arlee, Thursday, 15 October
Clear. High 54°, low 34°.
Pressure30.45 inHg
Wind4.9 mph NW
Humidity38%
Visibility—
Dew point23°
Fri, 1658° / 34°0
58 °
Arlee, Friday, 16 October
Mostly clear. High 58°, low 34°.
Pressure30.45 inHg
Wind4.2 mph NW
Humidity31%
Visibility—
Dew point19°
Sat, 1767° / 40°0
67 °
Arlee, Saturday, 17 October
Mostly clear. High 67°, low 40°.
Pressure30.24 inHg
Wind5.7 mph SE
Humidity26%
Visibility—
Dew point22°
Sun, 1866° / 46°0
66 °
Arlee, Sunday, 18 October
Overcast. High 66°, low 46°.
Pressure30.03 inHg
Wind3.8 mph SE
Humidity32%
Visibility—
Dew point28°
Mon, 1963° / 44°0
63 °
Arlee, Monday, 19 October
Clear. High 63°, low 44°.
Pressure30.09 inHg
Wind5.7 mph NW
Humidity29%
Visibility—
Dew point26°
Tue, 2070° / 45°0
70 °
Arlee, Tuesday, 20 October
Overcast. High 70°, low 45°.
Pressure30.09 inHg
Wind7.3 mph W
Humidity24%
Visibility—
Dew point21°
Wed, 2164° / 46°0
64 °
Arlee, Wednesday, 21 October
Partly cloudy. High 64°, low 46°.
Pressure30.36 inHg
Wind5.4 mph NW
Humidity50%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2255° / 37°0.09
55 °
Arlee, Thursday, 22 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.09 in
Chance of precipitation43%
Record high79° (2003)
Record low16° (2020)
Fri, 2354° / 36°0.09
54 °
Arlee, Friday, 23 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.09 in
Chance of precipitation43%
Record high69° (2003)
Record low18° (2020)
Sat, 2454° / 36°0.08
54 °
Arlee, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.08 in
Chance of precipitation33%
Record high71° (2007)
Record low14° (1975)
Sun, 2553° / 36°0.07
53 °
Arlee, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.07 in
Chance of precipitation42%
Record high69° (2005)
Record low-6° (2020)
Mon, 2651° / 35°0.09
51 °
Arlee, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.09 in
Chance of precipitation43%
Record high68° (1986)
Record low1° (2020)
Tue, 2751° / 34°0.09
51 °
Arlee, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.09 in
Chance of precipitation40%
Record high65° (1985)
Record low14° (1975)
Wed, 2850° / 34°0.1
50 °
Arlee, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.1 in
Chance of precipitation43%
Record high65° (2008)
Record low14° (1991)
Thu, 2949° / 33°0.09
49 °
Arlee, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.09 in
Chance of precipitation47%
Record high67° (2008)
Record low6° (1961)
Fri, 3048° / 32°0.08
48 °
Arlee, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.08 in
Chance of precipitation35%
Record high67° (2008)
Record low6° (1996)
Sat, 3147° / 33°0.11
47 °
Arlee, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation45%
Record high65° (1988)
Record low5° (1996)
Sun, 0148° / 32°0.11
48 °
Arlee, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.11 in
Chance of precipitation43%
Record high66° (1988)
Record low6° (1984)
Mon, 0247° / 32°0.11
47 °
Arlee, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation40%
Record high64° (1981)
Record low6° (1991)
Tue, 0347° / 32°0.06
47 °
Arlee, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high64° (1981)
Record low-2° (1973)
Wed, 0447° / 33°0.12
47 °
Arlee, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation58%
Record high62° (1980)
Record low-4° (1973)
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 Arlee, 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 Arlee, 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.