Monthly outlook for Fairfield, MT: average high 55.4°, average low 36.8°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 17 October (68.3°), the coolest 25 October (27.1°).
55.4°/36.8°
Average high / low
+1.5°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
58.2°
54.8°
+1.9°
26 October – 4 November
50.7°
48.3°
+1.3°
5 November – 14 November
at normal
42.8°
—
October records over 66 years
86.2°1 October 1992All-time high
-10.5°30 October 1991All-time low
Sat, 1768° / 43°0
68 °
Fairfield, Saturday, 17 October
Overcast. High 68°, low 43°.
Pressure29.91 inHg
Wind14.3 mph S
Humidity31%
Visibility6.2 mi
Dew point30°
Sun, 1858° / 39°0
58 °
Fairfield, Sunday, 18 October
Clear. High 58°, low 39°.
Pressure30.12 inHg
Wind6.3 mph SE
Humidity46%
Visibility6.2 mi
Dew point34°
Mon, 1967° / 40°0
67 °
Fairfield, Monday, 19 October
Overcast. High 67°, low 40°.
Pressure29.85 inHg
Wind6.5 mph S
Humidity46%
Visibility6.2 mi
Dew point37°
Tue, 2053° / 43°0
53 °
Fairfield, Tuesday, 20 October
Partly cloudy. High 53°, low 43°.
Pressure30.12 inHg
Wind11.2 mph N
Humidity58%
Visibility6.2 mi
Dew point35°
Wed, 2167° / 38°0
67 °
Fairfield, Wednesday, 21 October
Clear. High 67°, low 38°.
Pressure30.00 inHg
Wind10.1 mph S
Humidity52%
Visibility—
Dew point37°
Thu, 2262° / 45°0
62 °
Fairfield, Thursday, 22 October
Partly cloudy. High 62°, low 45°.
Pressure29.74 inHg
Wind8.7 mph S
Humidity56%
Visibility—
Dew point40°
Fri, 2350° / 40°0.04
50 °
Fairfield, Friday, 23 October
Snow. High 50°, low 40°.
Pressure30.06 inHg
Wind25.3 mph N
Humidity56%
Visibility—
Dew point27°
Sat, 2444° / 34°0
44 °
Fairfield, Saturday, 24 October
Overcast. High 44°, low 34°.
Pressure30.45 inHg
Wind17 mph NW
Humidity30%
Visibility—
Dew point11°
Sun, 2546° / 27°0
46 °
Fairfield, Sunday, 25 October
Clear. High 46°, low 27°.
Pressure30.33 inHg
Wind9.6 mph SE
Humidity29%
Visibility—
Dew point9°
Mon, 2654° / 29°0
54 °
Fairfield, Monday, 26 October
Clear. High 54°, low 29°.
Pressure30.06 inHg
Wind14.4 mph S
Humidity37%
Visibility—
Dew point20°
Tue, 2749° / 35°0
49 °
Fairfield, Tuesday, 27 October
Overcast. High 49°, low 35°.
Pressure29.74 inHg
Wind9.1 mph NW
Humidity50%
Visibility—
Dew point26°
Wed, 2844° / 39°0.04
44 °
Fairfield, Wednesday, 28 October
Light rain. High 44°, low 39°.
Pressure29.65 inHg
Wind11.2 mph W
Humidity81%
Visibility—
Dew point35°
Thu, 2951° / 36°0.01
51 °
Fairfield, Thursday, 29 October
Light rain. High 51°, low 36°.
Pressure30.00 inHg
Wind10 mph SW
Humidity50%
Visibility—
Dew point28°
Fri, 3053° / 34°0
53 °
Fairfield, Friday, 30 October
Clear. High 53°, low 34°.
Pressure29.85 inHg
Wind24.1 mph SW
Humidity35%
Visibility—
Dew point23°
Sat, 3152° / 39°0
52 °
Fairfield, Saturday, 31 October
Partly cloudy. High 52°, low 39°.
Pressure29.59 inHg
Wind21.8 mph SW
Humidity42%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1041° / 25°0.02
41 °
Fairfield, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation27%
Record high64° (2025)
Record low-18° (1986)
Wed, 1141° / 23°0.02
41 °
Fairfield, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.02 in
Chance of precipitation22%
Record high64° (2016)
Record low-11° (2012)
Thu, 1242° / 25°0.02
42 °
Fairfield, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high67° (1999)
Record low-14° (1986)
Fri, 1342° / 26°0.02
42 °
Fairfield, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2025)
Record low-3° (1985)
Sat, 1443° / 26°0.02
43 °
Fairfield, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high64° (1999)
Record low-4° (1978)
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.