As of 02:19 MDT

Weather in Calypso, MT

45°Current weather

Calypso, Saturday, 17 October, 02:19

Clear. Feels like 41°. High 76°, low 42°.

Pressure30.12 inHg
Wind7.4 mph SW
Humidity60%
Visibility6.2 mi
Dew point32°

Monthly outlook for Calypso, MT: average high 59.4°, average low 41.7°. That is 2.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (75.7°), the coolest 25 October (36.6°).

59.4°/41.7°
Average high / low
+2.1°
Above normal
5 / 2
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October61.5°57.8°+2°
27 October – 5 November56.1°51.2°+2.7°
6 November – 15 Novemberat normal45.4°—

October records over 66 years

92.7°1 October 2011All-time high
-14.6°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Zero (8 mi).

Sun, 1864° / 45°0Overcast
64 °Overcast

Calypso, Sunday, 18 October

Overcast. High 64°, low 45°.

Pressure30.15 inHg
Wind5.5 mph NE
Humidity33%
Visibility6.2 mi
Dew point30°
Mon, 1969° / 43°0Clear
69 °Clear

Calypso, Monday, 19 October

Clear. High 69°, low 43°.

Pressure30.03 inHg
Wind10.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point41°
Tue, 2068° / 43°0Partly cloudy
68 °Partly cloudy

Calypso, Tuesday, 20 October

Partly cloudy. High 68°, low 43°.

Pressure29.97 inHg
Wind1.1 mph NE
Humidity61%
Visibility6.2 mi
Dew point46°
Wed, 2157° / 44°0Overcast
57 °Overcast

Calypso, Wednesday, 21 October

Overcast. High 57°, low 44°.

Pressure30.24 inHg
Wind6.6 mph E
Humidity84%
Visibility—
Dew point45°
Thu, 2272° / 49°0Clear
72 °Clear

Calypso, Thursday, 22 October

Clear. High 72°, low 49°.

Pressure29.91 inHg
Wind7 mph W
Humidity54%
Visibility—
Dew point47°
Fri, 2362° / 39°0.6Rain
62 °Rain

Calypso, Friday, 23 October

Rain. High 62°, low 39°.

Pressure29.71 inHg
Wind27.3 mph NW
Humidity80%
Visibility—
Dew point44°
Sat, 2447° / 39°0.22Rain
47 °Rain

Calypso, Saturday, 24 October

Rain. High 47°, low 39°.

Pressure30.47 inHg
Wind24.1 mph NW
Humidity46%
Visibility—
Dew point25°
Sun, 2550° / 37°0.15Light rain
50 °Light rain

Calypso, Sunday, 25 October

Light rain. High 50°, low 37°.

Pressure30.30 inHg
Wind20.2 mph SE
Humidity42%
Visibility—
Dew point25°
Mon, 2651° / 40°0.06Light rain
51 °Light rain

Calypso, Monday, 26 October

Light rain. High 51°, low 40°.

Pressure30.06 inHg
Wind16.6 mph NW
Humidity59%
Visibility—
Dew point34°
Tue, 2753° / 38°0Clear
53 °Clear

Calypso, Tuesday, 27 October

Clear. High 53°, low 38°.

Pressure30.18 inHg
Wind6.5 mph W
Humidity42%
Visibility—
Dew point26°
Wed, 2861° / 42°0Partly cloudy
61 °Partly cloudy

Calypso, Wednesday, 28 October

Partly cloudy. High 61°, low 42°.

Pressure29.94 inHg
Wind9.1 mph NE
Humidity39%
Visibility—
Dew point30°
Thu, 2949° / 41°0.15Light rain
49 °Light rain

Calypso, Thursday, 29 October

Light rain. High 49°, low 41°.

Pressure29.91 inHg
Wind21.2 mph NE
Humidity77%
Visibility—
Dew point36°
Fri, 3054° / 42°0Overcast
54 °Overcast

Calypso, Friday, 30 October

Overcast. High 54°, low 42°.

Pressure30.09 inHg
Wind13.6 mph SW
Humidity69%
Visibility—
Dew point37°
Sat, 3161° / 41°0Clear
61 °Clear

Calypso, Saturday, 31 October

Clear. High 61°, low 41°.

Pressure30.12 inHg
Wind12.5 mph SW
Humidity40%
Visibility—
Dew point30°
Sun, 0158° / 43°0Clear
58 °Clear

Calypso, Sunday, 1 November

Clear. High 58°, low 43°.

Pressure29.94 inHg
Wind14.3 mph W
Humidity28%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0250° / 32°0.02Climate normal
50 °Climate normal

Calypso, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (1965)
Record low-3° (1991)
Tue, 0349° / 32°0.02Climate normal
49 °Climate normal

Calypso, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1983)
Record low-8° (1991)
Wed, 0451° / 32°0.02Climate normal
51 °Climate normal

Calypso, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1965)
Record low12° (1991)
Thu, 0550° / 31°0.02Climate normal
50 °Climate normal

Calypso, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation22%
Record high69° (2020)
Record low0° (2003)
Fri, 0649° / 30°0.02Climate normal
49 °Climate normal

Calypso, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2009)
Record low7° (1991)
Sat, 0748° / 30°0.02Climate normal
48 °Climate normal

Calypso, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (1999)
Record low-2° (1991)
Sun, 0846° / 29°0.02Climate normal
46 °Climate normal

Calypso, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high72° (1999)
Record low-5° (2000)
Mon, 0945° / 28°0.06Climate normal
45 °Climate normal

Calypso, Monday, 9 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2016)
Record low-3° (2000)
Tue, 1044° / 26°0.05Climate normal
44 °Climate normal

Calypso, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (1989)
Record low-8° (1986)
Wed, 1143° / 25°0.01Climate normal
43 °Climate normal

Calypso, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°
Average low25°
Average precipitation0.01 in
Chance of precipitation8%
Record high65° (2016)
Record low-6° (2022)
Thu, 1245° / 26°0.02Climate normal
45 °Climate normal

Calypso, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (1999)
Record low-5° (2000)
Fri, 1345° / 28°0.02Climate normal
45 °Climate normal

Calypso, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation18%
Record high65° (2025)
Record low-11° (1986)
Sat, 1445° / 28°0.02Climate normal
45 °Climate normal

Calypso, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1999)
Record low-13° (2014)
Sun, 1545° / 26°0.01Climate normal
45 °Climate normal

Calypso, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.01 in
Chance of precipitation5%
Record high65° (2001)
Record low-7° (2014)

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 Calypso, 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 Calypso, 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.