Monthly outlook for Piper, MT: average high 55.1°, average low 36.6°. That is 0° below the climate normal for October. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 23 October (74.8°), the coolest 14 October (20.4°).
55.1°/36.6°
Average high / low
−0°
Below normal
3 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
49.4°
55.5°
-3.4°
20 October – 29 October
64.5°
52.8°
+6.5°
30 October – 8 November
at normal
46.7°
—
October records over 66 years
87.4°1 October 2011All-time high
-16.4°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Lewistown (13 mi).
Sun, 1136° / 30°0.69
36 °
Piper, Sunday, 11 October
Snow. High 36°, low 30°.
Pressure30.06 inHg
Wind5.4 mph NE
Humidity96%
Visibility1.0 mi
Dew point32°
Mon, 1231° / 22°0.41
31 °
Piper, Monday, 12 October
Snow. High 31°, low 22°.
Pressure30.15 inHg
Wind6.6 mph W
Humidity97%
Visibility6.2 mi
Dew point29°
Tue, 1341° / 23°0
41 °
Piper, Tuesday, 13 October
Clear. High 41°, low 23°.
Pressure30.03 inHg
Wind4.9 mph W
Humidity65%
Visibility6.2 mi
Dew point28°
Wed, 1448° / 20°0
48 °
Piper, Wednesday, 14 October
Clear. High 48°, low 20°.
Pressure30.15 inHg
Wind2.2 mph NE
Humidity59%
Visibility6.2 mi
Dew point26°
Thu, 1550° / 31°0
50 °
Piper, Thursday, 15 October
Clear. High 50°, low 31°.
Pressure30.53 inHg
Wind6.5 mph E
Humidity52%
Visibility—
Dew point28°
Fri, 1640° / 28°0
40 °
Piper, Friday, 16 October
Light rain. High 40°, low 28°.
Pressure30.68 inHg
Wind8.7 mph W
Humidity43%
Visibility—
Dew point17°
Sat, 1762° / 27°0
62 °
Piper, Saturday, 17 October
Partly cloudy. High 62°, low 27°.
Pressure30.09 inHg
Wind6.2 mph S
Humidity19%
Visibility—
Dew point13°
Sun, 1865° / 45°0
65 °
Piper, Sunday, 18 October
Overcast. High 65°, low 45°.
Pressure29.91 inHg
Wind18.9 mph W
Humidity21%
Visibility—
Dew point20°
Mon, 1967° / 50°0
67 °
Piper, Monday, 19 October
Partly cloudy. High 67°, low 50°.
Pressure30.00 inHg
Wind19.9 mph W
Humidity22%
Visibility—
Dew point23°
Tue, 2060° / 48°0
60 °
Piper, Tuesday, 20 October
Overcast. High 60°, low 48°.
Pressure29.83 inHg
Wind22 mph W
Humidity39%
Visibility—
Dew point31°
Wed, 2149° / 38°0
49 °
Piper, Wednesday, 21 October
Mostly clear. High 49°, low 38°.
Pressure30.03 inHg
Wind18.9 mph NW
Humidity35%
Visibility—
Dew point22°
Thu, 2257° / 32°0
57 °
Piper, Thursday, 22 October
Overcast. High 57°, low 32°.
Pressure30.39 inHg
Wind10.2 mph W
Humidity31%
Visibility—
Dew point19°
Fri, 2375° / 46°0
75 °
Piper, Friday, 23 October
Partly cloudy. High 75°, low 46°.
Pressure30.03 inHg
Wind7.1 mph NW
Humidity19%
Visibility—
Dew point24°
Sat, 2474° / 55°0
74 °
Piper, Saturday, 24 October
Overcast. High 74°, low 55°.
Pressure29.91 inHg
Wind9.6 mph W
Humidity17%
Visibility—
Dew point23°
Sun, 2571° / 53°0
71 °
Piper, Sunday, 25 October
Overcast. High 71°, low 53°.
Pressure30.00 inHg
Wind7 mph NW
Humidity21%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2652° / 34°0.06
52 °
Piper, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation32%
Record high71° (1960)
Record low4° (2020)
Tue, 2751° / 32°0.05
51 °
Piper, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2024)
Record low-3° (2023)
Wed, 2850° / 32°0.06
50 °
Piper, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1990)
Record low1° (2023)
Thu, 2948° / 31°0.04
48 °
Piper, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1968)
Record low-5° (1991)
Fri, 3048° / 29°0.04
48 °
Piper, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation27%
Record high68° (1987)
Record low-16° (1991)
Sat, 3148° / 30°0.05
48 °
Piper, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (2008)
Record low0° (1984)
Sun, 0147° / 30°0.03
47 °
Piper, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (2025)
Record low-5° (1991)
Mon, 0247° / 29°0.02
47 °
Piper, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high68° (2020)
Record low-16° (1991)
Tue, 0348° / 30°0.05
48 °
Piper, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high68° (1981)
Record low-9° (1991)
Wed, 0448° / 30°0.05
48 °
Piper, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1976)
Record low-4° (2003)
Thu, 0547° / 30°0.07
47 °
Piper, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (2010)
Record low-15° (2003)
Fri, 0646° / 28°0.03
46 °
Piper, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (2010)
Record low-3° (2003)
Sat, 0745° / 28°0.02
45 °
Piper, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation25%
Record high70° (1999)
Record low-4° (1973)
Sun, 0844° / 27°0.06
44 °
Piper, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (1999)
Record low-2° (2022)
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 Piper, 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 Piper, 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.