As of 04:10 MDT

Weather in Opportunity, MT

27°

Opportunity, Monday, 12 October, 04:10

Overcast. Feels like 27°. High 34°, low 24°.

Pressure30.03 inHg

Wind1.6 mph N

Humidity92%

Visibility6.2 mi

Dew point26°

See detailed hourly forecast

Monthly outlook for Opportunity, MT: average high 54.2°, average low 32.8°. That is 3.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 23 October (63.8°), the coolest 14 October (17.5°).

54.2°/32.8°

Average high / low

+3.3°

Above normal

2 / 4

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 October – 21 October	50.3°	49.5°	+0.5°
22 October – 31 October	60.6°	44.4°	+9°
1 November – 10 November	at normal	39.3°	—

October records over 66 years

77°3 October 2010All-time high

-16.2°31 October 2002All-time low

Climate normals and records are computed from the nearest reference point — Walkerville (15 mi).

Tue, 1339° / 20°

39 °

Opportunity, Tuesday, 13 October

Mostly clear. High 39°, low 20°.

Pressure30.24 inHg

Wind1.8 mph E

Humidity96%

Visibility1.2 mi

Dew point26°

Wed, 1444° / 17°

44 °

Opportunity, Wednesday, 14 October

Partly cloudy. High 44°, low 17°.

Pressure30.21 inHg

Wind2.2 mph E

Humidity72%

Visibility6.2 mi

Dew point27°

Thu, 1545° / 26°

45 °

Opportunity, Thursday, 15 October

Clear. High 45°, low 26°.

Pressure30.62 inHg

Wind0.6 mph W

Humidity68%

Visibility6.2 mi

Dew point30°

Fri, 1658° / 26°

58 °

Opportunity, Friday, 16 October

Clear. High 58°, low 26°.

Pressure30.39 inHg

Wind3.1 mph SW

Humidity49%

Visibility—

Dew point28°

Sat, 1762° / 31°

62 °

Opportunity, Saturday, 17 October

Overcast. High 62°, low 31°.

Pressure29.97 inHg

Wind7.6 mph S

Humidity41%

Visibility—

Dew point28°

Sun, 1862° / 42°

62 °

Opportunity, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure29.91 inHg

Wind7.5 mph W

Humidity41%

Visibility—

Dew point32°

Mon, 1962° / 43°

62 °

Opportunity, Monday, 19 October

Overcast. High 62°, low 43°.

Pressure29.77 inHg

Wind12.1 mph S

Humidity35%

Visibility—

Dew point29°

Tue, 2049° / 35°

0.4

49 °

Opportunity, Tuesday, 20 October

Snow. High 49°, low 35°.

Pressure29.85 inHg

Wind10 mph SW

Humidity98%

Visibility—

Dew point39°

Wed, 2146° / 29°

46 °

Opportunity, Wednesday, 21 October

Clear. High 46°, low 29°.

Pressure30.09 inHg

Wind5.2 mph SW

Humidity59%

Visibility—

Dew point27°

Thu, 2255° / 31°

55 °

Opportunity, Thursday, 22 October

Clear. High 55°, low 31°.

Pressure30.18 inHg

Wind6 mph SW

Humidity39%

Visibility—

Dew point23°

Fri, 2364° / 36°

64 °

Opportunity, Friday, 23 October

Clear. High 64°, low 36°.

Pressure30.03 inHg

Wind6.3 mph SW

Humidity38%

Visibility—

Dew point29°

Sat, 2458° / 43°

58 °

Opportunity, Saturday, 24 October

Partly cloudy. High 58°, low 43°.

Pressure30.06 inHg

Wind5.8 mph SW

Humidity40%

Visibility—

Dew point29°

Sun, 2561° / 38°

61 °

Opportunity, Sunday, 25 October

Clear. High 61°, low 38°.

Pressure30.18 inHg

Wind5.8 mph SW

Humidity45%

Visibility—

Dew point32°

Mon, 2663° / 40°

63 °

Opportunity, Monday, 26 October

Clear. High 63°, low 40°.

Pressure30.06 inHg

Wind5.5 mph SW

Humidity36%

Visibility—

Dew point28°

Tue, 2763° / 44°

63 °

Opportunity, Tuesday, 27 October

Overcast. High 63°, low 44°.

Pressure29.83 inHg

Wind14.3 mph SW

Humidity34%

Visibility—

Dew point28°

From day 17 onward the outlook is built from 60-year climate statistics

Wed, 2844° / 25°

0.05

44 °

Opportunity, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.05 in

Chance of precipitation28%

Record high59° (1987)

Record low-1° (1991)

Thu, 2942° / 24°

0.04

42 °

Opportunity, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high42°

Average low24°

Average precipitation0.04 in

Chance of precipitation23%

Record high63° (1962)

Record low-11° (2019)

Fri, 3041° / 24°

0.03

41 °

Opportunity, Friday, 30 October

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.03 in

Chance of precipitation23%

Record high62° (1962)

Record low-7° (1991)

Sat, 3141° / 24°

0.04

41 °

Opportunity, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.04 in

Chance of precipitation23%

Record high58° (2014)

Record low-16° (2002)

Sun, 0141° / 24°

0.04

41 °

Opportunity, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.04 in

Chance of precipitation23%

Record high60° (2025)

Record low-11° (2002)

Mon, 0240° / 24°

0.04

40 °

Opportunity, Monday, 2 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.04 in

Chance of precipitation32%

Record high58° (1981)

Record low-25° (1991)

Tue, 0341° / 24°

0.04

41 °

Opportunity, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.04 in

Chance of precipitation20%

Record high60° (1962)

Record low-11° (1991)

Wed, 0441° / 24°

0.04

41 °

Opportunity, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.04 in

Chance of precipitation30%

Record high55° (1976)

Record low-14° (1973)

Thu, 0541° / 23°

0.04

41 °

Opportunity, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high41°

Average low23°

Average precipitation0.04 in

Chance of precipitation30%

Record high58° (2020)

Record low-16° (2003)

Fri, 0640° / 23°

0.04

40 °

Opportunity, Friday, 6 November

Climate normal for this date — 60-year average.

Average high40°

Average low23°

Average precipitation0.04 in

Chance of precipitation33%

Record high57° (2012)

Record low-2° (2003)

Sat, 0739° / 22°

0.04

39 °

Opportunity, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high39°

Average low22°

Average precipitation0.04 in

Chance of precipitation27%

Record high54° (2010)

Record low-11° (2000)

Sun, 0838° / 21°

0.06

38 °

Opportunity, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high38°

Average low21°

Average precipitation0.06 in

Chance of precipitation37%

Record high56° (2016)

Record low-8° (1994)

Mon, 0937° / 20°

0.04

37 °

Opportunity, Monday, 9 November

Climate normal for this date — 60-year average.

Average high37°

Average low20°

Average precipitation0.04 in

Chance of precipitation28%

Record high58° (2016)

Record low-11° (2020)

Tue, 1036° / 19°

0.03

36 °

Opportunity, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.03 in

Chance of precipitation22%

Record high58° (2025)

Record low-35° (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 Opportunity, 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 Opportunity, 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.