Monthly outlook for McElroy, MT: average high 53.2°, average low 38.9°. That is 0.3° 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 (67.5°), the coolest 17 October (29.4°).
53.2°/38.9°
Average high / low
+0.3°
Above normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
51.1°
53.7°
-1.4°
20 October – 29 October
56.8°
49.4°
+4.1°
30 October – 8 November
at normal
42.5°
—
October records over 66 years
85.8°1 October 1992All-time high
-2.9°30 October 1984All-time low
Sun, 1143° / 34°0.46
43 °
McElroy, Sunday, 11 October
Rain. High 43°, low 34°.
Pressure30.06 inHg
Wind12.9 mph NE
Humidity91%
Visibility3.0 mi
Dew point37°
Mon, 1235° / 32°0.57
35 °
McElroy, Monday, 12 October
Snow. High 35°, low 32°.
Pressure30.09 inHg
Wind8.5 mph N
Humidity97%
Visibility4.7 mi
Dew point33°
Tue, 1346° / 33°0
46 °
McElroy, Tuesday, 13 October
Overcast. High 46°, low 33°.
Pressure30.12 inHg
Wind8.6 mph W
Humidity75%
Visibility6.2 mi
Dew point31°
Wed, 1454° / 32°0
54 °
McElroy, Wednesday, 14 October
Clear. High 54°, low 32°.
Pressure30.30 inHg
Wind4.2 mph SW
Humidity57%
Visibility6.2 mi
Dew point36°
Thu, 1550° / 36°0
50 °
McElroy, Thursday, 15 October
Clear. High 50°, low 36°.
Pressure30.47 inHg
Wind15.8 mph NW
Humidity49%
Visibility—
Dew point30°
Fri, 1646° / 32°0
46 °
McElroy, Friday, 16 October
Clear. High 46°, low 32°.
Pressure30.59 inHg
Wind13.5 mph S
Humidity50%
Visibility—
Dew point26°
Sat, 1753° / 29°0
53 °
McElroy, Saturday, 17 October
Overcast. High 53°, low 29°.
Pressure30.21 inHg
Wind22 mph S
Humidity24%
Visibility—
Dew point8°
Sun, 1861° / 42°0
61 °
McElroy, Sunday, 18 October
Overcast. High 61°, low 42°.
Pressure30.03 inHg
Wind7.5 mph W
Humidity38%
Visibility—
Dew point29°
Mon, 1968° / 47°0
68 °
McElroy, Monday, 19 October
Overcast. High 68°, low 47°.
Pressure29.94 inHg
Wind10.2 mph SW
Humidity37%
Visibility—
Dew point34°
Tue, 2065° / 53°0.02
65 °
McElroy, Tuesday, 20 October
Light rain. High 65°, low 53°.
Pressure29.77 inHg
Wind21.9 mph W
Humidity32%
Visibility—
Dew point32°
Wed, 2153° / 46°0
53 °
McElroy, Wednesday, 21 October
Mostly clear. High 53°, low 46°.
Pressure30.09 inHg
Wind14.7 mph NW
Humidity59%
Visibility—
Dew point39°
Thu, 2255° / 41°0
55 °
McElroy, Thursday, 22 October
Clear. High 55°, low 41°.
Pressure30.24 inHg
Wind6.7 mph NE
Humidity53%
Visibility—
Dew point33°
Fri, 2352° / 40°0
52 °
McElroy, Friday, 23 October
Overcast. High 52°, low 40°.
Pressure30.36 inHg
Wind7.2 mph E
Humidity49%
Visibility—
Dew point29°
Sat, 2454° / 39°0
54 °
McElroy, Saturday, 24 October
Partly cloudy. High 54°, low 39°.
Pressure30.21 inHg
Wind10.4 mph SE
Humidity54%
Visibility—
Dew point33°
Sun, 2563° / 42°0
63 °
McElroy, Sunday, 25 October
Overcast. High 63°, low 42°.
Pressure29.83 inHg
Wind12.8 mph S
Humidity56%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2649° / 33°0.03
49 °
McElroy, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (1966)
Record low6° (2020)
Tue, 2748° / 31°0.05
48 °
McElroy, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high71° (1983)
Record low15° (1984)
Wed, 2846° / 31°0.03
46 °
McElroy, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.03 in
Chance of precipitation13%
Record high67° (1990)
Record low3° (1984)
Thu, 2945° / 30°0.04
45 °
McElroy, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high67° (2021)
Record low9° (1991)
Fri, 3045° / 29°0.03
45 °
McElroy, Friday, 30 October
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.03 in
Chance of precipitation13%
Record high65° (1983)
Record low-3° (1984)
Sat, 3145° / 29°0.03
45 °
McElroy, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high70° (1990)
Record low3° (2023)
Sun, 0144° / 29°0.04
44 °
McElroy, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (1983)
Record low-6° (1984)
Mon, 0243° / 28°0.04
43 °
McElroy, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high70° (1965)
Record low-2° (1984)
Tue, 0342° / 28°0.02
42 °
McElroy, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high64° (2020)
Record low-5° (1991)
Wed, 0443° / 28°0.03
43 °
McElroy, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.03 in
Chance of precipitation22%
Record high65° (1975)
Record low7° (1973)
Thu, 0542° / 27°0.03
42 °
McElroy, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (2020)
Record low1° (2003)
Fri, 0641° / 25°0.02
41 °
McElroy, Friday, 6 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (2009)
Record low-7° (1991)
Sat, 0741° / 25°0.02
41 °
McElroy, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high66° (1999)
Record low-4° (2003)
Sun, 0839° / 25°0.04
39 °
McElroy, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.04 in
Chance of precipitation20%
Record high65° (1999)
Record low2° (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 McElroy, 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 McElroy, 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.