Monthly outlook for Fairfield, MT: average high 53.5°, average low 37.5°. That is 0.6° below the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 26 October (69.3°), the coolest 13 October (23.6°).
53.5°/37.5°
Average high / low
−0.6°
Below normal
2 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
51.3°
55.6°
-2.4°
21 October – 30 October
57.2°
51.5°
+3.2°
31 October – 9 November
at normal
45.4°
—
October records over 66 years
86.2°1 October 1992All-time high
-10.5°30 October 1991All-time low
Mon, 1233° / 29°0.16
33 °
Fairfield, Monday, 12 October
Snow. High 33°, low 29°.
Pressure30.18 inHg
Wind2.3 mph S
Humidity97%
Visibility6.2 mi
Dew point29°
Tue, 1344° / 24°0
44 °
Fairfield, Tuesday, 13 October
Clear. High 44°, low 24°.
Pressure30.03 inHg
Wind6.6 mph SW
Humidity91%
Visibility1.3 mi
Dew point30°
Wed, 1444° / 28°0
44 °
Fairfield, Wednesday, 14 October
Clear. High 44°, low 28°.
Pressure30.15 inHg
Wind8.5 mph S
Humidity80%
Visibility2.0 mi
Dew point30°
Thu, 1552° / 34°0
52 °
Fairfield, Thursday, 15 October
Clear. High 52°, low 34°.
Pressure30.62 inHg
Wind9.3 mph N
Humidity65%
Visibility—
Dew point35°
Fri, 1664° / 37°0
64 °
Fairfield, Friday, 16 October
Clear. High 64°, low 37°.
Pressure30.27 inHg
Wind13.7 mph S
Humidity42%
Visibility—
Dew point33°
Sat, 1760° / 40°0
60 °
Fairfield, Saturday, 17 October
Mostly clear. High 60°, low 40°.
Pressure30.00 inHg
Wind17.7 mph SW
Humidity51%
Visibility—
Dew point35°
Sun, 1867° / 51°0
67 °
Fairfield, Sunday, 18 October
Overcast. High 67°, low 51°.
Pressure29.91 inHg
Wind15.7 mph SW
Humidity33%
Visibility—
Dew point32°
Mon, 1962° / 46°0
62 °
Fairfield, Monday, 19 October
Mostly clear. High 62°, low 46°.
Pressure29.85 inHg
Wind20 mph SW
Humidity40%
Visibility—
Dew point34°
Tue, 2055° / 43°0
55 °
Fairfield, Tuesday, 20 October
Overcast. High 55°, low 43°.
Pressure29.91 inHg
Wind11.4 mph SW
Humidity41%
Visibility—
Dew point26°
Wed, 2151° / 37°0
51 °
Fairfield, Wednesday, 21 October
Overcast. High 51°, low 37°.
Pressure30.18 inHg
Wind7 mph SW
Humidity48%
Visibility—
Dew point27°
Thu, 2252° / 42°0
52 °
Fairfield, Thursday, 22 October
Overcast. High 52°, low 42°.
Pressure29.94 inHg
Wind9.1 mph S
Humidity38%
Visibility—
Dew point23°
Fri, 2353° / 39°0
53 °
Fairfield, Friday, 23 October
Mostly clear. High 53°, low 39°.
Pressure30.24 inHg
Wind7.5 mph SW
Humidity43%
Visibility—
Dew point25°
Sat, 2457° / 38°0
57 °
Fairfield, Saturday, 24 October
Partly cloudy. High 57°, low 38°.
Pressure30.33 inHg
Wind5.9 mph E
Humidity47%
Visibility—
Dew point29°
Sun, 2561° / 40°0
61 °
Fairfield, Sunday, 25 October
Mostly clear. High 61°, low 40°.
Pressure30.33 inHg
Wind5.7 mph S
Humidity36%
Visibility—
Dew point26°
Mon, 2669° / 43°0
69 °
Fairfield, Monday, 26 October
Clear. High 69°, low 43°.
Pressure30.00 inHg
Wind15.3 mph S
Humidity33%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2751° / 31°0.03
51 °
Fairfield, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2024)
Record low8° (2023)
Wed, 2850° / 30°0.03
50 °
Fairfield, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low30°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (2008)
Record low-1° (1991)
Thu, 2948° / 29°0.03
48 °
Fairfield, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (1987)
Record low-2° (1991)
Fri, 3048° / 28°0.02
48 °
Fairfield, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high70° (1962)
Record low-10° (1991)
Sat, 3147° / 29°0.03
47 °
Fairfield, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2014)
Record low-8° (2002)
Sun, 0147° / 29°0.03
47 °
Fairfield, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (2025)
Record low-10° (1984)
Mon, 0247° / 29°0.03
47 °
Fairfield, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation22%
Record high66° (1981)
Record low-7° (1991)
Tue, 0347° / 29°0.02
47 °
Fairfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1962)
Record low-4° (1991)
Wed, 0447° / 29°0.03
47 °
Fairfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2010)
Record low2° (2017)
Thu, 0546° / 28°0.03
46 °
Fairfield, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation22%
Record high68° (2010)
Record low-13° (2003)
Fri, 0644° / 27°0.03
44 °
Fairfield, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.03 in
Chance of precipitation20%
Record high66° (2010)
Record low-9° (2003)
Sat, 0744° / 28°0.03
44 °
Fairfield, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation20%
Record high65° (2010)
Record low-4° (1973)
Sun, 0843° / 26°0.04
43 °
Fairfield, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (2004)
Record low-5° (1973)
Mon, 0942° / 25°0.05
42 °
Fairfield, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.05 in
Chance of precipitation25%
Record high66° (2016)
Record low-2° (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 Fairfield, 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 Fairfield, 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.