Monthly outlook for Terry, MT: average high 58.9°, average low 41.2°. That is 0° below the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (83.2°), the coolest 23 October (32.9°).
58.9°/41.2°
Average high / low
−0°
Below normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
57.1°
59.4°
-1.3°
19 October – 28 October
61.8°
56.6°
+2.9°
29 October – 7 November
at normal
49.8°
—
October records over 66 years
92.8°1 October 2011All-time high
-12.1°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Fallon (9 mi).
Sat, 1070° / 50°0
70 °
Terry, Saturday, 10 October
Overcast. High 70°, low 50°.
Pressure29.59 inHg
Wind10.5 mph N
Humidity31%
Visibility6.2 mi
Dew point37°
Sun, 1148° / 41°0.33
48 °
Terry, Sunday, 11 October
Rain. High 48°, low 41°.
Pressure30.00 inHg
Wind14 mph NE
Humidity83%
Visibility5.1 mi
Dew point40°
Mon, 1241° / 39°0.32
41 °
Terry, Monday, 12 October
Rain. High 41°, low 39°.
Pressure30.09 inHg
Wind9.7 mph NE
Humidity97%
Visibility1.8 mi
Dew point38°
Tue, 1351° / 40°0
51 °
Terry, Tuesday, 13 October
Overcast. High 51°, low 40°.
Pressure30.15 inHg
Wind4.3 mph E
Humidity57%
Visibility—
Dew point32°
Wed, 1455° / 38°0
55 °
Terry, Wednesday, 14 October
Overcast. High 55°, low 38°.
Pressure30.03 inHg
Wind5.4 mph SW
Humidity71%
Visibility—
Dew point41°
Thu, 1552° / 44°0
52 °
Terry, Thursday, 15 October
Partly cloudy. High 52°, low 44°.
Pressure30.21 inHg
Wind29.4 mph NW
Humidity53%
Visibility—
Dew point32°
Fri, 1644° / 34°0
44 °
Terry, Friday, 16 October
Partly cloudy. High 44°, low 34°.
Pressure30.62 inHg
Wind30.4 mph NW
Humidity43%
Visibility—
Dew point19°
Sat, 1767° / 33°0
67 °
Terry, Saturday, 17 October
Mostly clear. High 67°, low 33°.
Pressure30.06 inHg
Wind17.8 mph W
Humidity24%
Visibility—
Dew point16°
Sun, 1860° / 42°0
60 °
Terry, Sunday, 18 October
Mostly clear. High 60°, low 42°.
Pressure30.12 inHg
Wind8.2 mph E
Humidity31%
Visibility—
Dew point24°
Mon, 1970° / 44°0
70 °
Terry, Monday, 19 October
Partly cloudy. High 70°, low 44°.
Pressure29.85 inHg
Wind8.1 mph S
Humidity27%
Visibility—
Dew point26°
Tue, 2061° / 50°0
61 °
Terry, Tuesday, 20 October
Overcast. High 61°, low 50°.
Pressure30.03 inHg
Wind17.2 mph NW
Humidity40%
Visibility—
Dew point35°
Wed, 2169° / 45°0
69 °
Terry, Wednesday, 21 October
Overcast. High 69°, low 45°.
Pressure29.94 inHg
Wind20 mph NW
Humidity36%
Visibility—
Dew point33°
Thu, 2252° / 39°0
52 °
Terry, Thursday, 22 October
Overcast. High 52°, low 39°.
Pressure30.36 inHg
Wind29 mph NW
Humidity67%
Visibility—
Dew point34°
Fri, 2353° / 33°0
53 °
Terry, Friday, 23 October
Clear. High 53°, low 33°.
Pressure30.33 inHg
Wind8.9 mph E
Humidity44%
Visibility—
Dew point24°
Sat, 2466° / 38°0
66 °
Terry, Saturday, 24 October
Mostly clear. High 66°, low 38°.
Pressure29.97 inHg
Wind5.7 mph SE
Humidity26%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2556° / 36°0.01
56 °
Terry, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low36°
Average precipitation0.01 in
Chance of precipitation7%
Record high74° (2017)
Record low5° (2020)
Mon, 2655° / 36°0.03
55 °
Terry, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.03 in
Chance of precipitation15%
Record high74° (1966)
Record low2° (2020)
Tue, 2754° / 34°0.02
54 °
Terry, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low34°
Average precipitation0.02 in
Chance of precipitation8%
Record high76° (1983)
Record low3° (2023)
Wed, 2853° / 34°0.04
53 °
Terry, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low34°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1990)
Record low4° (2023)
Thu, 2952° / 34°0.05
52 °
Terry, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high74° (1968)
Record low6° (1991)
Fri, 3051° / 32°0.02
51 °
Terry, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high70° (1983)
Record low-12° (1991)
Sat, 3151° / 33°0.04
51 °
Terry, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation13%
Record high77° (1990)
Record low2° (1991)
Sun, 0150° / 33°0.02
50 °
Terry, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (1965)
Record low5° (1984)
Mon, 0249° / 32°0.02
49 °
Terry, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high73° (1965)
Record low-2° (1991)
Tue, 0349° / 32°0.02
49 °
Terry, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1981)
Record low-9° (1991)
Wed, 0451° / 32°0.02
51 °
Terry, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1965)
Record low10° (1991)
Thu, 0549° / 31°0.02
49 °
Terry, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation23%
Record high69° (2001)
Record low-1° (2003)
Fri, 0648° / 29°0.02
48 °
Terry, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (2009)
Record low7° (1991)
Sat, 0748° / 30°0.02
48 °
Terry, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high70° (1999)
Record low-1° (1991)
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 Terry, 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 Terry, 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.