Monthly outlook for Poplar, MT: average high 59°, average low 42.4°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (68.8°), the coolest 14 October (30.6°).
59°/42.4°
Average high / low
+1.8°
Above normal
2 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
57.6°
56.8°
+0.4°
21 October – 30 October
61.4°
52.2°
+5.1°
31 October – 9 November
at normal
45.4°
—
October records over 66 years
90.3°2 October 1997All-time high
-3.1°30 October 1991All-time low
Mon, 1241° / 36°0.37
41 °
Poplar, Monday, 12 October
Rain. High 41°, low 36°.
Pressure30.06 inHg
Wind7.6 mph N
Humidity86%
Visibility6.2 mi
Dew point35°
Tue, 1350° / 35°0
50 °
Poplar, Tuesday, 13 October
Overcast. High 50°, low 35°.
Pressure30.12 inHg
Wind5.6 mph W
Humidity63%
Visibility6.2 mi
Dew point32°
Wed, 1455° / 31°0
55 °
Poplar, Wednesday, 14 October
Clear. High 55°, low 31°.
Pressure30.24 inHg
Wind4.1 mph SW
Humidity64%
Visibility6.2 mi
Dew point37°
Thu, 1554° / 38°0
54 °
Poplar, Thursday, 15 October
Clear. High 54°, low 38°.
Pressure30.53 inHg
Wind13.6 mph NW
Humidity49%
Visibility—
Dew point31°
Fri, 1666° / 33°0
66 °
Poplar, Friday, 16 October
Clear. High 66°, low 33°.
Pressure30.39 inHg
Wind11.1 mph S
Humidity38%
Visibility—
Dew point28°
Sat, 1769° / 41°0
69 °
Poplar, Saturday, 17 October
Mostly clear. High 69°, low 41°.
Pressure29.91 inHg
Wind10.4 mph SW
Humidity36%
Visibility—
Dew point31°
Sun, 1865° / 54°0
65 °
Poplar, Sunday, 18 October
Overcast. High 65°, low 54°.
Pressure29.97 inHg
Wind19.7 mph W
Humidity28%
Visibility—
Dew point28°
Mon, 1968° / 49°0
68 °
Poplar, Monday, 19 October
Overcast. High 68°, low 49°.
Pressure29.88 inHg
Wind14.2 mph SE
Humidity28%
Visibility—
Dew point27°
Tue, 2065° / 53°0
65 °
Poplar, Tuesday, 20 October
Overcast. High 65°, low 53°.
Pressure29.83 inHg
Wind14.3 mph NW
Humidity35%
Visibility—
Dew point34°
Wed, 2161° / 46°0
61 °
Poplar, Wednesday, 21 October
Overcast. High 61°, low 46°.
Pressure29.94 inHg
Wind18.7 mph W
Humidity32%
Visibility—
Dew point28°
Thu, 2264° / 48°0
64 °
Poplar, Thursday, 22 October
Overcast. High 64°, low 48°.
Pressure30.03 inHg
Wind12.1 mph W
Humidity31%
Visibility—
Dew point28°
Fri, 2367° / 44°0
67 °
Poplar, Friday, 23 October
Overcast. High 67°, low 44°.
Pressure30.03 inHg
Wind13.4 mph S
Humidity29%
Visibility—
Dew point27°
Sat, 2461° / 48°0
61 °
Poplar, Saturday, 24 October
Overcast. High 61°, low 48°.
Pressure30.06 inHg
Wind10.7 mph NW
Humidity34%
Visibility—
Dew point28°
Sun, 2556° / 42°0
56 °
Poplar, Sunday, 25 October
Partly cloudy. High 56°, low 42°.
Pressure30.33 inHg
Wind10.2 mph NW
Humidity33%
Visibility—
Dew point23°
Mon, 2659° / 40°0
59 °
Poplar, Monday, 26 October
Overcast. High 59°, low 40°.
Pressure29.91 inHg
Wind11.8 mph S
Humidity34%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0940° / 25°0.04
40 °
Poplar, Monday, 9 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (2016)
Record low-1° (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.