Monthly outlook for Poplar, MT: average high 54.3°, average low 39.6°. That is 1.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 10 October (65.4°), the coolest 17 October (30.1°).
54.3°/39.6°
Average high / low
−1.1°
Below normal
2 / 2
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
53.5°
57.2°
-2°
20 October – 29 October
55.6°
53.1°
+1.4°
30 October – 8 November
at normal
46.3°
—
October records over 66 years
90.3°2 October 1997All-time high
-3.1°30 October 1991All-time low
Sun, 1146° / 38°0.34
46 °
Poplar, Sunday, 11 October
Light rain. High 46°, low 38°.
Pressure30.09 inHg
Wind11.4 mph NE
Humidity87%
Visibility3.7 mi
Dew point38°
Mon, 1238° / 35°0.43
38 °
Poplar, Monday, 12 October
Snow. High 38°, low 35°.
Pressure30.12 inHg
Wind8.3 mph NE
Humidity98%
Visibility2.0 mi
Dew point35°
Tue, 1352° / 38°0
52 °
Poplar, Tuesday, 13 October
Overcast. High 52°, low 38°.
Pressure30.12 inHg
Wind6.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point33°
Wed, 1456° / 32°0
56 °
Poplar, Wednesday, 14 October
Clear. High 56°, low 32°.
Pressure30.30 inHg
Wind4.9 mph SE
Humidity60%
Visibility—
Dew point34°
Thu, 1557° / 40°0
57 °
Poplar, Thursday, 15 October
Partly cloudy. High 57°, low 40°.
Pressure30.21 inHg
Wind25.8 mph NW
Humidity55%
Visibility—
Dew point39°
Fri, 1640° / 33°0
40 °
Poplar, Friday, 16 October
Overcast. High 40°, low 33°.
Pressure30.62 inHg
Wind27.6 mph NW
Humidity45%
Visibility—
Dew point19°
Sat, 1759° / 30°0
59 °
Poplar, Saturday, 17 October
Partly cloudy. High 59°, low 30°.
Pressure30.09 inHg
Wind19.1 mph S
Humidity25%
Visibility—
Dew point13°
Sun, 1860° / 41°0
60 °
Poplar, Sunday, 18 October
Clear. High 60°, low 41°.
Pressure30.03 inHg
Wind7.4 mph E
Humidity25%
Visibility—
Dew point19°
Mon, 1963° / 44°0
63 °
Poplar, Monday, 19 October
Overcast. High 63°, low 44°.
Pressure29.80 inHg
Wind17.8 mph SE
Humidity37%
Visibility—
Dew point28°
Tue, 2058° / 45°0.01
58 °
Poplar, Tuesday, 20 October
Light rain. High 58°, low 45°.
Pressure29.71 inHg
Wind12.2 mph W
Humidity46%
Visibility—
Dew point33°
Wed, 2156° / 46°0
56 °
Poplar, Wednesday, 21 October
Partly cloudy. High 56°, low 46°.
Pressure30.03 inHg
Wind9.4 mph W
Humidity40%
Visibility—
Dew point28°
Thu, 2259° / 44°0
59 °
Poplar, Thursday, 22 October
Overcast. High 59°, low 44°.
Pressure29.77 inHg
Wind16.5 mph W
Humidity36%
Visibility—
Dew point29°
Fri, 2352° / 42°0
52 °
Poplar, Friday, 23 October
Overcast. High 52°, low 42°.
Pressure30.18 inHg
Wind18.2 mph NW
Humidity45%
Visibility—
Dew point27°
Sat, 2454° / 39°0
54 °
Poplar, Saturday, 24 October
Overcast. High 54°, low 39°.
Pressure30.09 inHg
Wind18 mph W
Humidity35%
Visibility—
Dew point23°
Sun, 2556° / 46°0
56 °
Poplar, Sunday, 25 October
Partly cloudy. High 56°, low 46°.
Pressure30.18 inHg
Wind18.1 mph NW
Humidity40%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2653° / 35°0.03
53 °
Poplar, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.03 in
Chance of precipitation25%
Record high72° (1966)
Record low1° (2020)
Tue, 2751° / 33°0.04
51 °
Poplar, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1983)
Record low7° (2023)
Wed, 2850° / 33°0.02
50 °
Poplar, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high75° (1990)
Record low9° (2023)
Thu, 2949° / 31°0.05
49 °
Poplar, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2021)
Record low9° (1991)
Fri, 3049° / 31°0.02
49 °
Poplar, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation18%
Record high70° (1983)
Record low-3° (1991)
Sat, 3148° / 30°0.03
48 °
Poplar, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high76° (1990)
Record low1° (2023)
Sun, 0147° / 31°0.02
47 °
Poplar, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2008)
Record low2° (1984)
Mon, 0246° / 30°0.02
46 °
Poplar, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1965)
Record low2° (1991)
Tue, 0346° / 30°0.03
46 °
Poplar, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high67° (1981)
Record low-5° (1991)
Wed, 0448° / 30°0.03
48 °
Poplar, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (1983)
Record low8° (1991)
Thu, 0546° / 29°0.02
46 °
Poplar, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high71° (2020)
Record low-4° (2003)
Fri, 0645° / 27°0.02
45 °
Poplar, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (2010)
Record low0° (1991)
Sat, 0745° / 28°0.02
45 °
Poplar, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (1999)
Record low-1° (2003)
Sun, 0843° / 27°0.03
43 °
Poplar, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (1999)
Record low-8° (2000)
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 Poplar, 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 Poplar, 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.