As of 06:11 MDT

Weather in Opportunity, MT

35°

Opportunity, Sunday, 18 October, 06:11

Clear. Feels like 35°. High 66°, low 34°.

Pressure30.12 inHg

Wind1 mph SW

Humidity79%

Visibility6.2 mi

Dew point29°

See detailed hourly forecast

Monthly outlook for Opportunity, MT: average high 59.7°, average low 36.9°. That is 8° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 19 October (69.9°), the coolest 19 October (30.8°).

59.7°/36.9°

Average high / low

+8°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
18 October – 27 October	60.7°	47.6°	+7.3°
28 October – 6 November	58°	41.1°	+9.4°
7 November – 16 November	at normal	36.7°	—

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).

Mon, 1970° / 31°

70 °

Opportunity, Monday, 19 October

Overcast. High 70°, low 31°.

Pressure29.94 inHg

Wind1.9 mph SE

Humidity44%

Visibility6.2 mi

Dew point35°

Tue, 2060° / 34°

60 °

Opportunity, Tuesday, 20 October

Overcast. High 60°, low 34°.

Pressure30.06 inHg

Wind0.6 mph NW

Humidity45%

Visibility6.2 mi

Dew point34°

Wed, 2163° / 38°

63 °

Opportunity, Wednesday, 21 October

Clear. High 63°, low 38°.

Pressure30.03 inHg

Wind1.5 mph E

Humidity53%

Visibility6.2 mi

Dew point39°

Thu, 2264° / 39°

0.02

64 °

Opportunity, Thursday, 22 October

Light rain. High 64°, low 39°.

Pressure29.80 inHg

Wind6.9 mph S

Humidity52%

Visibility—

Dew point38°

Fri, 2348° / 36°

0.02

48 °

Opportunity, Friday, 23 October

Light rain. High 48°, low 36°.

Pressure29.88 inHg

Wind7.4 mph NW

Humidity61%

Visibility—

Dew point32°

Sat, 2456° / 33°

56 °

Opportunity, Saturday, 24 October

Overcast. High 56°, low 33°.

Pressure30.33 inHg

Wind5.2 mph N

Humidity53%

Visibility—

Dew point30°

Sun, 2562° / 38°

62 °

Opportunity, Sunday, 25 October

Overcast. High 62°, low 38°.

Pressure30.12 inHg

Wind11.3 mph SW

Humidity22%

Visibility—

Dew point16°

Mon, 2662° / 39°

62 °

Opportunity, Monday, 26 October

Overcast. High 62°, low 39°.

Pressure29.94 inHg

Wind6.1 mph SW

Humidity26%

Visibility—

Dew point19°

Tue, 2757° / 35°

57 °

Opportunity, Tuesday, 27 October

Clear. High 57°, low 35°.

Pressure29.91 inHg

Wind10.9 mph W

Humidity24%

Visibility—

Dew point14°

Wed, 2859° / 37°

59 °

Opportunity, Wednesday, 28 October

Partly cloudy. High 59°, low 37°.

Pressure29.91 inHg

Wind9.6 mph W

Humidity36%

Visibility—

Dew point26°

Thu, 2960° / 36°

60 °

Opportunity, Thursday, 29 October

Overcast. High 60°, low 36°.

Pressure29.85 inHg

Wind13.5 mph W

Humidity40%

Visibility—

Dew point25°

Fri, 3055° / 40°

55 °

Opportunity, Friday, 30 October

Overcast. High 55°, low 40°.

Pressure29.77 inHg

Wind11.6 mph SW

Humidity41%

Visibility—

Dew point27°

Sat, 3157° / 40°

57 °

Opportunity, Saturday, 31 October

Overcast. High 57°, low 40°.

Pressure29.65 inHg

Wind15.3 mph W

Humidity21%

Visibility—

Dew point13°

Sun, 0159° / 37°

59 °

Opportunity, Sunday, 1 November

Overcast. High 59°, low 37°.

Pressure29.88 inHg

Wind15.7 mph SW

Humidity33%

Visibility—

Dew point22°

Mon, 0259° / 42°

59 °

Opportunity, Monday, 2 November

Overcast. High 59°, low 42°.

Pressure29.91 inHg

Wind18.9 mph SW

Humidity42%

Visibility—

Dew point31°

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

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)

Mon, 1636° / 19°

0.03

36 °

Opportunity, Monday, 16 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.03 in

Chance of precipitation22%

Record high53° (2025)

Record low-7° (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 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.