Monthly outlook for Andes, MT: average high 58.4°, average low 42.6°. That is 1.7° above the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 19 October (68.7°), the coolest 14 October (31.6°).
58.4°/42.6°
Average high / low
+1.7°
Above normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
56.9°
56.4°
+0.3°
21 October – 30 October
60.8°
51.9°
+5°
31 October – 9 November
at normal
45.1°
—
October records over 66 years
90.3°1 October 1992All-time high
-4.4°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Culbertson (13 mi).
Mon, 1241° / 37°0.45
41 °
Andes, Monday, 12 October
Rain. High 41°, low 37°.
Pressure30.03 inHg
Wind7.8 mph N
Humidity88%
Visibility6.2 mi
Dew point36°
Tue, 1348° / 35°0
48 °
Andes, Tuesday, 13 October
Overcast. High 48°, low 35°.
Pressure30.12 inHg
Wind6.6 mph W
Humidity65%
Visibility6.2 mi
Dew point32°
Wed, 1456° / 32°0
56 °
Andes, Wednesday, 14 October
Clear. High 56°, low 32°.
Pressure30.24 inHg
Wind4.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point36°
Thu, 1552° / 39°0
52 °
Andes, Thursday, 15 October
Clear. High 52°, low 39°.
Pressure30.50 inHg
Wind15.9 mph NW
Humidity49%
Visibility—
Dew point30°
Fri, 1664° / 35°0
64 °
Andes, Friday, 16 October
Clear. High 64°, low 35°.
Pressure30.42 inHg
Wind14.3 mph S
Humidity40%
Visibility—
Dew point29°
Sat, 1769° / 43°0
69 °
Andes, Saturday, 17 October
Clear. High 69°, low 43°.
Pressure29.94 inHg
Wind13.2 mph S
Humidity32%
Visibility—
Dew point29°
Sun, 1864° / 53°0
64 °
Andes, Sunday, 18 October
Overcast. High 64°, low 53°.
Pressure29.97 inHg
Wind19.7 mph W
Humidity30%
Visibility—
Dew point28°
Mon, 1969° / 48°0
69 °
Andes, Monday, 19 October
Overcast. High 69°, low 48°.
Pressure29.88 inHg
Wind16.9 mph SE
Humidity27%
Visibility—
Dew point26°
Tue, 2063° / 52°0
63 °
Andes, Tuesday, 20 October
Overcast. High 63°, low 52°.
Pressure29.80 inHg
Wind13.6 mph NW
Humidity40%
Visibility—
Dew point36°
Wed, 2161° / 45°0
61 °
Andes, Wednesday, 21 October
Overcast. High 61°, low 45°.
Pressure29.94 inHg
Wind18.6 mph W
Humidity31%
Visibility—
Dew point27°
Thu, 2264° / 47°0
64 °
Andes, Thursday, 22 October
Overcast. High 64°, low 47°.
Pressure30.06 inHg
Wind10.9 mph W
Humidity31%
Visibility—
Dew point28°
Fri, 2367° / 44°0
67 °
Andes, Friday, 23 October
Overcast. High 67°, low 44°.
Pressure30.06 inHg
Wind12.7 mph S
Humidity29%
Visibility—
Dew point26°
Sat, 2460° / 48°0
60 °
Andes, Saturday, 24 October
Partly cloudy. High 60°, low 48°.
Pressure30.06 inHg
Wind13.5 mph W
Humidity35%
Visibility—
Dew point28°
Sun, 2554° / 41°0
54 °
Andes, Sunday, 25 October
Mostly clear. High 54°, low 41°.
Pressure30.33 inHg
Wind12.7 mph NW
Humidity34%
Visibility—
Dew point22°
Mon, 2658° / 40°0
58 °
Andes, Monday, 26 October
Overcast. High 58°, low 40°.
Pressure29.91 inHg
Wind13.2 mph SW
Humidity31%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2751° / 33°0.04
51 °
Andes, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (1983)
Record low7° (2023)
Wed, 2850° / 33°0.03
50 °
Andes, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high74° (1990)
Record low11° (2023)
Thu, 2948° / 32°0.05
48 °
Andes, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (1968)
Record low10° (1991)
Fri, 3048° / 31°0.03
48 °
Andes, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.03 in
Chance of precipitation15%
Record high70° (1983)
Record low-2° (1991)
Sat, 3148° / 31°0.02
48 °
Andes, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (1990)
Record low-4° (2023)
Sun, 0147° / 32°0.04
47 °
Andes, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high69° (1965)
Record low2° (1984)
Mon, 0246° / 30°0.02
46 °
Andes, 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 low3° (1991)
Tue, 0346° / 30°0.02
46 °
Andes, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (1981)
Record low-4° (1991)
Wed, 0447° / 30°0.03
47 °
Andes, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation23%
Record high69° (1975)
Record low8° (1991)
Thu, 0546° / 29°0.02
46 °
Andes, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (2020)
Record low-1° (2003)
Fri, 0645° / 28°0.02
45 °
Andes, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high66° (2009)
Record low0° (1991)
Sat, 0745° / 28°0.02
45 °
Andes, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1999)
Record low-3° (1991)
Sun, 0843° / 27°0.03
43 °
Andes, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (1999)
Record low-2° (2000)
Mon, 0940° / 25°0.04
40 °
Andes, Monday, 9 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (2016)
Record low3° (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 Andes, 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 Andes, 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.