As of 01:30 MDT

Weather in Greenough, MT

48°Current weather

Greenough, Sunday, 18 October, 01:30

Clear. Feels like 48°. High 59°, low 28°.

Pressure30.09 inHg
Wind2.4 mph S
Humidity78%
Visibility6.2 mi
Dew point41°

Monthly outlook for Greenough, MT: average high 54.3°, average low 33.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 5 days (about 0.4 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 22 October (63°), the coolest 31 October (26°).

54.3°/33.3°
Average high / low
+1.9°
Above normal
5 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October58.9°53°+3.3°
28 October – 6 November46.6°46.3°+0.1°
7 November – 16 Novemberat normal41.8°—

October records over 66 years

84.4°1 October 1992All-time high
-9.6°25 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Potomac (7 mi).

Mon, 1962° / 29°0Partly cloudy
62 °Partly cloudy

Greenough, Monday, 19 October

Partly cloudy. High 62°, low 29°.

Pressure29.94 inHg
Wind1.5 mph N
Humidity52%
Visibility6.2 mi
Dew point37°
Tue, 2063° / 39°0Overcast
63 °Overcast

Greenough, Tuesday, 20 October

Overcast. High 63°, low 39°.

Pressure30.06 inHg
Wind2.4 mph N
Humidity51%
Visibility6.2 mi
Dew point38°
Wed, 2162° / 36°0Partly cloudy
62 °Partly cloudy

Greenough, Wednesday, 21 October

Partly cloudy. High 62°, low 36°.

Pressure30.06 inHg
Wind1.5 mph NW
Humidity54%
Visibility6.2 mi
Dew point38°
Thu, 2263° / 41°0.05Light rain
63 °Light rain

Greenough, Thursday, 22 October

Light rain. High 63°, low 41°.

Pressure29.85 inHg
Wind2.5 mph NW
Humidity59%
Visibility—
Dew point39°
Fri, 2348° / 41°0.04Light rain
48 °Light rain

Greenough, Friday, 23 October

Light rain. High 48°, low 41°.

Pressure29.97 inHg
Wind8.5 mph SW
Humidity71%
Visibility—
Dew point34°
Sat, 2452° / 34°0Clear
52 °Clear

Greenough, Saturday, 24 October

Clear. High 52°, low 34°.

Pressure30.47 inHg
Wind3.7 mph E
Humidity53%
Visibility—
Dew point29°
Sun, 2558° / 31°0Clear
58 °Clear

Greenough, Sunday, 25 October

Clear. High 58°, low 31°.

Pressure30.33 inHg
Wind2.5 mph E
Humidity41%
Visibility—
Dew point25°
Mon, 2660° / 34°0Clear
60 °Clear

Greenough, Monday, 26 October

Clear. High 60°, low 34°.

Pressure30.00 inHg
Wind1.7 mph NE
Humidity36%
Visibility—
Dew point24°
Tue, 2762° / 34°0Clear
62 °Clear

Greenough, Tuesday, 27 October

Clear. High 62°, low 34°.

Pressure29.80 inHg
Wind1.5 mph NW
Humidity33%
Visibility—
Dew point22°
Wed, 2854° / 37°0Partly cloudy
54 °Partly cloudy

Greenough, Wednesday, 28 October

Partly cloudy. High 54°, low 37°.

Pressure29.77 inHg
Wind13.2 mph W
Humidity31%
Visibility—
Dew point20°
Thu, 2947° / 37°0.04Snow
47 °Snow

Greenough, Thursday, 29 October

Snow. High 47°, low 37°.

Pressure29.97 inHg
Wind9.7 mph W
Humidity72%
Visibility—
Dew point33°
Fri, 3049° / 30°0.06Snow
49 °Snow

Greenough, Friday, 30 October

Snow. High 49°, low 30°.

Pressure29.41 inHg
Wind10.8 mph W
Humidity42%
Visibility—
Dew point25°
Sat, 3144° / 26°0.02Light snow
44 °Light snow

Greenough, Saturday, 31 October

Light snow. High 44°, low 26°.

Pressure29.68 inHg
Wind9.6 mph SW
Humidity53%
Visibility—
Dew point21°
Sun, 0146° / 29°0.15Snow
46 °Snow

Greenough, Sunday, 1 November

Snow. High 46°, low 29°.

Pressure29.50 inHg
Wind12.2 mph W
Humidity66%
Visibility—
Dew point33°
Mon, 0240° / 27°0Partly cloudy
40 °Partly cloudy

Greenough, Monday, 2 November

Partly cloudy. High 40°, low 27°.

Pressure29.83 inHg
Wind1.8 mph SW
Humidity60%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0346° / 30°0.03Climate normal
46 °Climate normal

Greenough, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.03 in
Chance of precipitation23%
Record high62° (2020)
Record low-2° (1973)
Wed, 0446° / 31°0.07Climate normal
46 °Climate normal

Greenough, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation43%
Record high60° (2020)
Record low-6° (1973)
Thu, 0545° / 30°0.07Climate normal
45 °Climate normal

Greenough, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.07 in
Chance of precipitation37%
Record high65° (2020)
Record low0° (1961)
Fri, 0644° / 29°0.07Climate normal
44 °Climate normal

Greenough, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation42%
Record high62° (2012)
Record low11° (2003)
Sat, 0743° / 29°0.09Climate normal
43 °Climate normal

Greenough, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high43°
Average low29°
Average precipitation0.09 in
Chance of precipitation43%
Record high57° (2010)
Record low5° (1961)
Sun, 0843° / 28°0.06Climate normal
43 °Climate normal

Greenough, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low28°
Average precipitation0.06 in
Chance of precipitation35%
Record high59° (2016)
Record low0° (1994)
Mon, 0943° / 28°0.06Climate normal
43 °Climate normal

Greenough, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°
Average low28°
Average precipitation0.06 in
Chance of precipitation38%
Record high61° (2016)
Record low0° (1986)
Tue, 1041° / 26°0.04Climate normal
41 °Climate normal

Greenough, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation33%
Record high60° (2016)
Record low-19° (1986)
Wed, 1141° / 25°0.06Climate normal
41 °Climate normal

Greenough, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°
Average low25°
Average precipitation0.06 in
Chance of precipitation32%
Record high59° (2016)
Record low-9° (2000)
Thu, 1242° / 26°0.06Climate normal
42 °Climate normal

Greenough, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation42%
Record high63° (1999)
Record low-11° (1986)
Fri, 1342° / 27°0.07Climate normal
42 °Climate normal

Greenough, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.07 in
Chance of precipitation43%
Record high60° (1999)
Record low2° (2000)
Sat, 1441° / 26°0.06Climate normal
41 °Climate normal

Greenough, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation38%
Record high59° (2021)
Record low-1° (2000)
Sun, 1542° / 25°0.02Climate normal
42 °Climate normal

Greenough, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation13%
Record high63° (2021)
Record low4° (2014)
Mon, 1640° / 26°0.07Climate normal
40 °Climate normal

Greenough, Monday, 16 November

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation40%
Record high55° (2021)
Record low-4° (1961)

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 Greenough, 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 Greenough, 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.