Monthly outlook for Truly, MT: average high 61.1°, average low 40.8°. That is 2.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (71.8°), the coolest 14 October (30.9°).
61.1°/40.8°
Average high / low
+2.9°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
60.3°
57.5°
+1.6°
24 October – 2 November
62.5°
51.7°
+6°
3 November – 12 November
at normal
46°
—
October records over 66 years
88.9°1 October 1992All-time high
-10.7°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Ulm (6 mi).
Thu, 1543° / 36°0
43 °
Truly, Thursday, 15 October
Clear. High 43°, low 36°.
Pressure30.77 inHg
Wind2.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point25°
Fri, 1671° / 38°0
71 °
Truly, Friday, 16 October
Partly cloudy. High 71°, low 38°.
Pressure30.33 inHg
Wind12 mph S
Humidity30%
Visibility6.2 mi
Dew point29°
Sat, 1772° / 48°0
72 °
Truly, Saturday, 17 October
Overcast. High 72°, low 48°.
Pressure29.94 inHg
Wind14.8 mph SW
Humidity25%
Visibility6.2 mi
Dew point29°
Sun, 1862° / 41°0
62 °
Truly, Sunday, 18 October
Partly cloudy. High 62°, low 41°.
Pressure30.12 inHg
Wind0.4 mph NE
Humidity47%
Visibility6.2 mi
Dew point36°
Mon, 1970° / 38°0
70 °
Truly, Monday, 19 October
Clear. High 70°, low 38°.
Pressure29.97 inHg
Wind7.3 mph E
Humidity49%
Visibility—
Dew point37°
Tue, 2053° / 42°0
53 °
Truly, Tuesday, 20 October
Overcast. High 53°, low 42°.
Pressure29.91 inHg
Wind8.7 mph N
Humidity44%
Visibility—
Dew point29°
Wed, 2163° / 37°0
63 °
Truly, Wednesday, 21 October
Clear. High 63°, low 37°.
Pressure29.88 inHg
Wind17.9 mph SW
Humidity31%
Visibility—
Dew point24°
Thu, 2266° / 44°0
66 °
Truly, Thursday, 22 October
Clear. High 66°, low 44°.
Pressure29.80 inHg
Wind9.7 mph S
Humidity23%
Visibility—
Dew point21°
Fri, 2348° / 37°0.03
48 °
Truly, Friday, 23 October
Snow. High 48°, low 37°.
Pressure30.33 inHg
Wind10.9 mph W
Humidity57%
Visibility—
Dew point27°
Sat, 2445° / 35°0
45 °
Truly, Saturday, 24 October
Overcast. High 45°, low 35°.
Pressure30.47 inHg
Wind6 mph S
Humidity47%
Visibility—
Dew point23°
Sun, 2562° / 34°0
62 °
Truly, Sunday, 25 October
Overcast. High 62°, low 34°.
Pressure30.30 inHg
Wind9.5 mph SW
Humidity31%
Visibility—
Dew point20°
Mon, 2666° / 45°0
66 °
Truly, Monday, 26 October
Overcast. High 66°, low 45°.
Pressure29.97 inHg
Wind16.5 mph SW
Humidity23%
Visibility—
Dew point22°
Tue, 2767° / 46°0
67 °
Truly, Tuesday, 27 October
Overcast. High 67°, low 46°.
Pressure29.80 inHg
Wind18.3 mph SW
Humidity32%
Visibility—
Dew point31°
Wed, 2866° / 52°0
66 °
Truly, Wednesday, 28 October
Overcast. High 66°, low 52°.
Pressure29.80 inHg
Wind16.8 mph SW
Humidity39%
Visibility—
Dew point36°
Thu, 2970° / 50°0
70 °
Truly, Thursday, 29 October
Overcast. High 70°, low 50°.
Pressure29.83 inHg
Wind12.2 mph SW
Humidity34%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3050° / 31°0.02
50 °
Truly, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1962)
Record low-11° (1991)
Sat, 3149° / 32°0.03
49 °
Truly, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (2008)
Record low-7° (2002)
Sun, 0149° / 31°0.03
49 °
Truly, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2025)
Record low-5° (1984)
Mon, 0249° / 31°0.02
49 °
Truly, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (1981)
Record low-13° (1991)
Tue, 0349° / 32°0.03
49 °
Truly, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (1962)
Record low-1° (1991)
Wed, 0449° / 32°0.04
49 °
Truly, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2021)
Record low2° (2003)
Thu, 0548° / 31°0.04
48 °
Truly, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (2010)
Record low-10° (2003)
Fri, 0646° / 29°0.04
46 °
Truly, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (2010)
Record low-6° (2003)
Sat, 0746° / 30°0.02
46 °
Truly, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation18%
Record high69° (2010)
Record low-9° (1973)
Sun, 0845° / 29°0.04
45 °
Truly, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.04 in
Chance of precipitation27%
Record high66° (2004)
Record low-5° (1973)
Mon, 0944° / 27°0.05
44 °
Truly, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.05 in
Chance of precipitation28%
Record high68° (2016)
Record low0° (1986)
Tue, 1043° / 27°0.03
43 °
Truly, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high65° (2025)
Record low-14° (1986)
Wed, 1144° / 26°0.03
44 °
Truly, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation23%
Record high66° (1990)
Record low-6° (2000)
Thu, 1245° / 27°0.02
45 °
Truly, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high70° (1999)
Record low-17° (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 Truly, 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 Truly, 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.