Monthly outlook for Buffalo, MT: average high 58.5°, average low 39.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 9 October (78.5°), the coolest 12 October (25.7°).
58.5°/39.2°
Average high / low
+2.5°
Above normal
3 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
55.9°
54.5°
+0.8°
17 October – 26 October
62.8°
52.2°
+5.9°
27 October – 5 November
at normal
45.6°
—
October records over 66 years
82.9°1 October 2011All-time high
-6.5°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Judith Gap (10 mi).
Thu, 0875° / 45°0
75 °
Buffalo, Thursday, 8 October
Overcast. High 75°, low 45°.
Pressure29.94 inHg
Wind6.4 mph N
Humidity21%
Visibility6.2 mi
Dew point26°
Fri, 0979° / 51°0
79 °
Buffalo, Friday, 9 October
Overcast. High 79°, low 51°.
Pressure29.59 inHg
Wind7.7 mph SW
Humidity20%
Visibility6.2 mi
Dew point28°
Sat, 1057° / 36°0.17
57 °
Buffalo, Saturday, 10 October
Rain. High 57°, low 36°.
Pressure29.65 inHg
Wind8.2 mph N
Humidity37%
Visibility6.2 mi
Dew point31°
Sun, 1133° / 29°0.41
33 °
Buffalo, Sunday, 11 October
Snow. High 33°, low 29°.
Pressure30.27 inHg
Wind13 mph N
Humidity97%
Visibility—
Dew point29°
Mon, 1235° / 26°0.02
35 °
Buffalo, Monday, 12 October
Light snow. High 35°, low 26°.
Pressure30.30 inHg
Wind8.8 mph S
Humidity96%
Visibility—
Dew point30°
Tue, 1359° / 35°0
59 °
Buffalo, Tuesday, 13 October
Mostly clear. High 59°, low 35°.
Pressure29.74 inHg
Wind8.7 mph SW
Humidity90%
Visibility—
Dew point46°
Wed, 1456° / 36°0.08
56 °
Buffalo, Wednesday, 14 October
Snow. High 56°, low 36°.
Pressure29.80 inHg
Wind22.5 mph N
Humidity37%
Visibility—
Dew point29°
Thu, 1543° / 33°0
43 °
Buffalo, Thursday, 15 October
Mostly clear. High 43°, low 33°.
Pressure30.42 inHg
Wind22.4 mph NW
Humidity45%
Visibility—
Dew point19°
Fri, 1649° / 31°0
49 °
Buffalo, Friday, 16 October
Clear. High 49°, low 31°.
Pressure30.42 inHg
Wind18 mph N
Humidity32%
Visibility—
Dew point16°
Sat, 1773° / 37°0
73 °
Buffalo, Saturday, 17 October
Overcast. High 73°, low 37°.
Pressure30.00 inHg
Wind10.5 mph S
Humidity21%
Visibility—
Dew point22°
Sun, 1862° / 44°0
62 °
Buffalo, Sunday, 18 October
Overcast. High 62°, low 44°.
Pressure30.00 inHg
Wind9.6 mph S
Humidity33%
Visibility—
Dew point27°
Mon, 1960° / 46°0.01
60 °
Buffalo, Monday, 19 October
Light rain. High 60°, low 46°.
Pressure29.94 inHg
Wind21.7 mph NW
Humidity29%
Visibility—
Dew point27°
Tue, 2069° / 43°0
69 °
Buffalo, Tuesday, 20 October
Overcast. High 69°, low 43°.
Pressure30.00 inHg
Wind10.2 mph S
Humidity26%
Visibility—
Dew point23°
Wed, 2157° / 45°0
57 °
Buffalo, Wednesday, 21 October
Mostly clear. High 57°, low 45°.
Pressure30.33 inHg
Wind10.2 mph N
Humidity41%
Visibility—
Dew point30°
Thu, 2257° / 43°0
57 °
Buffalo, Thursday, 22 October
Overcast. High 57°, low 43°.
Pressure30.18 inHg
Wind13.9 mph S
Humidity36%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2351° / 32°0.04
51 °
Buffalo, Friday, 23 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (1965)
Record low9° (2020)
Sat, 2451° / 31°0.04
51 °
Buffalo, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.04 in
Chance of precipitation28%
Record high71° (2007)
Record low3° (1975)
Sun, 2550° / 31°0.04
50 °
Buffalo, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (2017)
Record low-4° (2020)
Mon, 2649° / 31°0.06
49 °
Buffalo, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.06 in
Chance of precipitation35%
Record high66° (1960)
Record low-3° (2020)
Tue, 2748° / 29°0.04
48 °
Buffalo, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation28%
Record high67° (2024)
Record low-5° (2023)
Wed, 2848° / 29°0.05
48 °
Buffalo, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.05 in
Chance of precipitation30%
Record high67° (2017)
Record low-1° (2023)
Thu, 2946° / 28°0.04
46 °
Buffalo, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation35%
Record high67° (1968)
Record low2° (1991)
Fri, 3046° / 27°0.03
46 °
Buffalo, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.03 in
Chance of precipitation23%
Record high64° (1987)
Record low3° (1991)
Sat, 3145° / 28°0.05
45 °
Buffalo, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (1987)
Record low-7° (2002)
Sun, 0145° / 28°0.04
45 °
Buffalo, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (2025)
Record low-2° (1991)
Mon, 0245° / 27°0.02
45 °
Buffalo, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation20%
Record high64° (1981)
Record low-10° (1991)
Tue, 0345° / 28°0.04
45 °
Buffalo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (1962)
Record low3° (1991)
Wed, 0445° / 28°0.05
45 °
Buffalo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high62° (2001)
Record low5° (1967)
Thu, 0544° / 28°0.06
44 °
Buffalo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1980)
Record low-1° (2003)
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 Buffalo, 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 Buffalo, 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.