As of 21:17 MDT

Weather in Opportunity, MT

46°

Opportunity, Saturday, 17 October, 21:17

Overcast. Feels like 45°. High 66°, low 32°.

Pressure30.03 inHg

Wind3.2 mph W

Humidity59%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Monthly outlook for Opportunity, MT: average high 55°, average low 32.3°. That is 5.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 17 October (65.7°), the coolest 31 October (24.4°).

55°/32.3°

Average high / low

+5.1°

Above normal

3 / 4

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
17 October – 26 October	57.8°	48.1°	+5.4°
27 October – 5 November	50.3°	41.6°	+4.8°
6 November – 15 November	at normal	37.1°	—

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).

Sun, 1862° / 30°

62 °

Opportunity, Sunday, 18 October

Clear. High 62°, low 30°.

Pressure30.12 inHg

Wind0.7 mph SE

Humidity54%

Visibility6.2 mi

Dew point31°

Mon, 1964° / 30°

64 °

Opportunity, Monday, 19 October

Partly cloudy. High 64°, low 30°.

Pressure29.94 inHg

Wind2.3 mph SE

Humidity47%

Visibility6.2 mi

Dew point35°

Tue, 2060° / 34°

60 °

Opportunity, Tuesday, 20 October

Overcast. High 60°, low 34°.

Pressure30.06 inHg

Wind0.3 mph N

Humidity47%

Visibility6.2 mi

Dew point34°

Wed, 2161° / 37°

61 °

Opportunity, Wednesday, 21 October

Overcast. High 61°, low 37°.

Pressure30.06 inHg

Wind1.7 mph SE

Humidity52%

Visibility6.2 mi

Dew point36°

Thu, 2261° / 37°

0.02

61 °

Opportunity, Thursday, 22 October

Light rain. High 61°, low 37°.

Pressure29.83 inHg

Wind8.2 mph S

Humidity54%

Visibility—

Dew point38°

Fri, 2341° / 32°

0.39

41 °

Opportunity, Friday, 23 October

Snow. High 41°, low 32°.

Pressure29.94 inHg

Wind6.9 mph NW

Humidity87%

Visibility—

Dew point36°

Sat, 2445° / 26°

45 °

Opportunity, Saturday, 24 October

Clear. High 45°, low 26°.

Pressure30.47 inHg

Wind5.3 mph SW

Humidity73%

Visibility—

Dew point31°

Sun, 2556° / 30°

56 °

Opportunity, Sunday, 25 October

Clear. High 56°, low 30°.

Pressure30.27 inHg

Wind6.5 mph SW

Humidity48%

Visibility—

Dew point29°

Mon, 2662° / 36°

62 °

Opportunity, Monday, 26 October

Clear. High 62°, low 36°.

Pressure29.94 inHg

Wind6 mph SW

Humidity32%

Visibility—

Dew point24°

Tue, 2761° / 37°

61 °

Opportunity, Tuesday, 27 October

Clear. High 61°, low 37°.

Pressure29.74 inHg

Wind7.5 mph SW

Humidity30%

Visibility—

Dew point22°

Wed, 2855° / 40°

55 °

Opportunity, Wednesday, 28 October

Overcast. High 55°, low 40°.

Pressure29.71 inHg

Wind13 mph W

Humidity37%

Visibility—

Dew point26°

Thu, 2949° / 35°

49 °

Opportunity, Thursday, 29 October

Overcast. High 49°, low 35°.

Pressure29.91 inHg

Wind13.7 mph SW

Humidity52%

Visibility—

Dew point27°

Fri, 3050° / 32°

0.06

50 °

Opportunity, Friday, 30 October

Snow. High 50°, low 32°.

Pressure29.44 inHg

Wind23.3 mph SW

Humidity42%

Visibility—

Dew point24°

Sat, 3141° / 24°

41 °

Opportunity, Saturday, 31 October

Overcast. High 41°, low 24°.

Pressure29.68 inHg

Wind20.8 mph SW

Humidity43%

Visibility—

Dew point15°

Sun, 0145° / 25°

0.41

45 °

Opportunity, Sunday, 1 November

Snow. High 45°, low 25°.

Pressure29.47 inHg

Wind16.8 mph SW

Humidity69%

Visibility—

Dew point34°

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

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)

Wed, 1136° / 18°

0.03

36 °

Opportunity, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high36°

Average low18°

Average precipitation0.03 in

Chance of precipitation23%

Record high57° (2016)

Record low-23° (2000)

Thu, 1237° / 19°

0.04

37 °

Opportunity, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high37°

Average low19°

Average precipitation0.04 in

Chance of precipitation22%

Record high59° (1999)

Record low-13° (1986)

Fri, 1337° / 19°

0.04

37 °

Opportunity, Friday, 13 November

Climate normal for this date — 60-year average.

Average high37°

Average low19°

Average precipitation0.04 in

Chance of precipitation25%

Record high58° (1999)

Record low-14° (2000)

Sat, 1436° / 19°

0.02

36 °

Opportunity, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.02 in

Chance of precipitation20%

Record high57° (1999)

Record low-7° (1968)

Sun, 1536° / 18°

0.02

36 °

Opportunity, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high36°

Average low18°

Average precipitation0.02 in

Chance of precipitation15%

Record high55° (1999)

Record low-11° (2009)

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.