Monthly outlook for Twodot, MT: average high 56.5°, average low 37.7°. That is 1.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 26 October (69.3°), the coolest 13 October (25.7°).
56.5°/37.7°
Average high / low
+1.5°
Above normal
3 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
56.4°
54.9°
+0.8°
22 October – 31 October
56.7°
50.2°
+3.6°
1 November – 10 November
at normal
44.8°
—
October records over 66 years
84.9°1 October 2011All-time high
-14.3°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Harlowton (11 mi).
Tue, 1346° / 26°0
46 °
Twodot, Tuesday, 13 October
Clear. High 46°, low 26°.
Pressure30.09 inHg
Wind4.8 mph W
Humidity72%
Visibility1.5 mi
Dew point31°
Wed, 1454° / 28°0
54 °
Twodot, Wednesday, 14 October
Clear. High 54°, low 28°.
Pressure30.12 inHg
Wind14.2 mph W
Humidity49%
Visibility6.2 mi
Dew point28°
Thu, 1556° / 32°0
56 °
Twodot, Thursday, 15 October
Clear. High 56°, low 32°.
Pressure30.62 inHg
Wind5.1 mph SE
Humidity51%
Visibility6.2 mi
Dew point34°
Fri, 1666° / 33°0
66 °
Twodot, Friday, 16 October
Clear. High 66°, low 33°.
Pressure30.36 inHg
Wind10.6 mph W
Humidity37%
Visibility—
Dew point29°
Sat, 1768° / 42°0
68 °
Twodot, Saturday, 17 October
Partly cloudy. High 68°, low 42°.
Pressure29.91 inHg
Wind17.2 mph W
Humidity27%
Visibility—
Dew point27°
Sun, 1863° / 47°0
63 °
Twodot, Sunday, 18 October
Overcast. High 63°, low 47°.
Pressure29.85 inHg
Wind17.2 mph NW
Humidity39%
Visibility—
Dew point33°
Mon, 1963° / 39°0
63 °
Twodot, Monday, 19 October
Overcast. High 63°, low 39°.
Pressure29.88 inHg
Wind4.2 mph E
Humidity41%
Visibility—
Dew point29°
Tue, 2065° / 47°0.01
65 °
Twodot, Tuesday, 20 October
Light rain. High 65°, low 47°.
Pressure29.50 inHg
Wind15.7 mph SW
Humidity30%
Visibility—
Dew point29°
Wed, 2148° / 37°0.07
48 °
Twodot, Wednesday, 21 October
Snow. High 48°, low 37°.
Pressure29.94 inHg
Wind9.4 mph NE
Humidity77%
Visibility—
Dew point35°
Thu, 2238° / 35°0.09
38 °
Twodot, Thursday, 22 October
Light snow. High 38°, low 35°.
Pressure30.24 inHg
Wind4.2 mph E
Humidity95%
Visibility—
Dew point35°
Fri, 2354° / 38°0
54 °
Twodot, Friday, 23 October
Overcast. High 54°, low 38°.
Pressure29.85 inHg
Wind17.9 mph W
Humidity76%
Visibility—
Dew point37°
Sat, 2456° / 42°0
56 °
Twodot, Saturday, 24 October
Overcast. High 56°, low 42°.
Pressure30.24 inHg
Wind22.5 mph W
Humidity34%
Visibility—
Dew point23°
Sun, 2562° / 39°0
62 °
Twodot, Sunday, 25 October
Partly cloudy. High 62°, low 39°.
Pressure30.42 inHg
Wind10.7 mph W
Humidity36%
Visibility—
Dew point27°
Mon, 2669° / 46°0
69 °
Twodot, Monday, 26 October
Mostly clear. High 69°, low 46°.
Pressure30.27 inHg
Wind9.2 mph W
Humidity26%
Visibility—
Dew point26°
Tue, 2762° / 45°0
62 °
Twodot, Tuesday, 27 October
Overcast. High 62°, low 45°.
Pressure30.27 inHg
Wind4.3 mph SE
Humidity38%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2849° / 30°0.04
49 °
Twodot, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation25%
Record high68° (1990)
Record low0° (2023)
Thu, 2947° / 29°0.04
47 °
Twodot, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (1968)
Record low-2° (1971)
Fri, 3047° / 27°0.02
47 °
Twodot, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high66° (1962)
Record low4° (1971)
Sat, 3146° / 28°0.04
46 °
Twodot, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (1987)
Record low-14° (2002)
Sun, 0147° / 28°0.03
47 °
Twodot, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.03 in
Chance of precipitation12%
Record high68° (2025)
Record low-6° (2002)
Mon, 0246° / 27°0.01
46 °
Twodot, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.01 in
Chance of precipitation13%
Record high66° (2020)
Record low-13° (1995)
Tue, 0347° / 28°0.04
47 °
Twodot, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (1962)
Record low-3° (1967)
Wed, 0447° / 28°0.04
47 °
Twodot, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (2001)
Record low-1° (1967)
Thu, 0546° / 28°0.04
46 °
Twodot, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation28%
Record high67° (2020)
Record low-6° (2003)
Fri, 0645° / 26°0.03
45 °
Twodot, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.03 in
Chance of precipitation20%
Record high66° (2010)
Record low-3° (2017)
Sat, 0745° / 27°0.03
45 °
Twodot, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (1999)
Record low-3° (2017)
Sun, 0843° / 26°0.06
43 °
Twodot, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (1999)
Record low3° (1968)
Mon, 0942° / 24°0.05
42 °
Twodot, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.05 in
Chance of precipitation23%
Record high65° (2016)
Record low-3° (1966)
Tue, 1042° / 23°0.03
42 °
Twodot, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.03 in
Chance of precipitation23%
Record high64° (2025)
Record low-16° (1986)
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 Twodot, 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 Twodot, 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.