Monthly outlook for Kirby, MT: average high 54.9°, average low 38.4°. That is 1.2° below the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 19 October (73.1°), the coolest 27 October (32°).
54.9°/38.4°
Average high / low
−1.2°
Below normal
1 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
58.9°
58.3°
+0.3°
23 October – 1 November
48.1°
53.2°
-2.8°
2 November – 11 November
at normal
48°
—
October records over 66 years
89.2°1 October 2011All-time high
-12.3°30 October 1991All-time low
Wed, 1456° / 39°0
56 °
Kirby, Wednesday, 14 October
Overcast. High 56°, low 39°.
Pressure30.12 inHg
Wind5.9 mph SE
Humidity47%
Visibility6.2 mi
Dew point34°
Thu, 1551° / 35°0
51 °
Kirby, Thursday, 15 October
Partly cloudy. High 51°, low 35°.
Pressure30.62 inHg
Wind7.7 mph NW
Humidity48%
Visibility6.2 mi
Dew point28°
Fri, 1670° / 37°0
70 °
Kirby, Friday, 16 October
Clear. High 70°, low 37°.
Pressure30.39 inHg
Wind6.6 mph SE
Humidity29%
Visibility6.2 mi
Dew point25°
Sat, 1772° / 48°0
72 °
Kirby, Saturday, 17 October
Clear. High 72°, low 48°.
Pressure29.91 inHg
Wind5.3 mph N
Humidity22%
Visibility—
Dew point28°
Sun, 1863° / 45°0
63 °
Kirby, Sunday, 18 October
Partly cloudy. High 63°, low 45°.
Pressure30.00 inHg
Wind7.9 mph SE
Humidity37%
Visibility—
Dew point32°
Mon, 1973° / 46°0
73 °
Kirby, Monday, 19 October
Mostly clear. High 73°, low 46°.
Pressure29.71 inHg
Wind8.8 mph SE
Humidity18%
Visibility—
Dew point21°
Tue, 2060° / 48°0
60 °
Kirby, Tuesday, 20 October
Overcast. High 60°, low 48°.
Pressure29.65 inHg
Wind15.4 mph NW
Humidity42%
Visibility—
Dew point35°
Wed, 2145° / 34°0.33
45 °
Kirby, Wednesday, 21 October
Snow. High 45°, low 34°.
Pressure30.06 inHg
Wind12.3 mph NW
Humidity98%
Visibility—
Dew point34°
Thu, 2245° / 35°0.01
45 °
Kirby, Thursday, 22 October
Light snow. High 45°, low 35°.
Pressure29.88 inHg
Wind16 mph NW
Humidity69%
Visibility—
Dew point32°
Fri, 2342° / 37°0.03
42 °
Kirby, Friday, 23 October
Light rain. High 42°, low 37°.
Pressure30.21 inHg
Wind15.2 mph NW
Humidity85%
Visibility—
Dew point35°
Sat, 2445° / 33°0
45 °
Kirby, Saturday, 24 October
Overcast. High 45°, low 33°.
Pressure30.30 inHg
Wind7.8 mph W
Humidity53%
Visibility—
Dew point26°
Sun, 2545° / 35°0
45 °
Kirby, Sunday, 25 October
Clear. High 45°, low 35°.
Pressure30.18 inHg
Wind13.4 mph NW
Humidity48%
Visibility—
Dew point25°
Mon, 2644° / 32°0
44 °
Kirby, Monday, 26 October
Overcast. High 44°, low 32°.
Pressure30.36 inHg
Wind8 mph NW
Humidity59%
Visibility—
Dew point26°
Tue, 2752° / 32°0
52 °
Kirby, Tuesday, 27 October
Overcast. High 52°, low 32°.
Pressure30.27 inHg
Wind16.5 mph NW
Humidity37%
Visibility—
Dew point21°
Wed, 2860° / 41°0
60 °
Kirby, Wednesday, 28 October
Clear. High 60°, low 41°.
Pressure29.91 inHg
Wind6.6 mph SE
Humidity37%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2951° / 33°0.09
51 °
Kirby, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.09 in
Chance of precipitation35%
Record high74° (1968)
Record low-3° (1991)
Fri, 3051° / 30°0.04
51 °
Kirby, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (1965)
Record low-12° (1991)
Sat, 3150° / 31°0.04
50 °
Kirby, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (1999)
Record low4° (1972)
Sun, 0150° / 31°0.06
50 °
Kirby, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.06 in
Chance of precipitation20%
Record high73° (1965)
Record low3° (1991)
Mon, 0249° / 31°0.04
49 °
Kirby, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1965)
Record low-5° (1995)
Tue, 0349° / 31°0.03
49 °
Kirby, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high73° (2020)
Record low-3° (1995)
Wed, 0451° / 31°0.03
51 °
Kirby, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.03 in
Chance of precipitation22%
Record high70° (1983)
Record low8° (1995)
Thu, 0550° / 32°0.04
50 °
Kirby, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.04 in
Chance of precipitation27%
Record high73° (2020)
Record low6° (1961)
Fri, 0649° / 30°0.05
49 °
Kirby, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high73° (2010)
Record low6° (1971)
Sat, 0749° / 30°0.04
49 °
Kirby, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1999)
Record low3° (2017)
Sun, 0847° / 29°0.04
47 °
Kirby, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1999)
Record low7° (1966)
Mon, 0946° / 28°0.07
46 °
Kirby, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.07 in
Chance of precipitation23%
Record high68° (2016)
Record low-5° (1966)
Tue, 1045° / 27°0.06
45 °
Kirby, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2025)
Record low-16° (1986)
Wed, 1144° / 26°0.02
44 °
Kirby, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation17%
Record high67° (1990)
Record low-9° (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 Kirby, 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 Kirby, 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.