As of 18:38 MDT

Weather in Calypso, MT

52°Current weather

Calypso, Sunday, 18 October, 18:38

Overcast. Feels like 49°. High 61°, low 40°.

Pressure30.18 inHg
Wind5.3 mph E
Humidity47%
Visibility6.2 mi
Dew point32°

Monthly outlook for Calypso, MT: average high 57.5°, average low 40.4°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 22 October (76.6°), the coolest 2 November (28.8°).

57.5°/40.4°
Average high / low
+1.3°
Above normal
2 / 2
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October61.9°57.4°+2.5°
28 October – 6 November50.1°50.6°-0.3°
7 November – 16 Novemberat normal45°—

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).

Mon, 1966° / 39°0Clear
66 °Clear

Calypso, Monday, 19 October

Clear. High 66°, low 39°.

Pressure30.06 inHg
Wind13.9 mph SE
Humidity36%
Visibility6.2 mi
Dew point33°
Tue, 2067° / 40°0Partly cloudy
67 °Partly cloudy

Calypso, Tuesday, 20 October

Partly cloudy. High 67°, low 40°.

Pressure30.03 inHg
Wind1.9 mph E
Humidity57%
Visibility6.2 mi
Dew point43°
Wed, 2166° / 41°0Clear
66 °Clear

Calypso, Wednesday, 21 October

Clear. High 66°, low 41°.

Pressure30.18 inHg
Wind8 mph E
Humidity68%
Visibility6.2 mi
Dew point47°
Thu, 2277° / 50°0Clear
77 °Clear

Calypso, Thursday, 22 October

Clear. High 77°, low 50°.

Pressure29.77 inHg
Wind8.9 mph SE
Humidity54%
Visibility6.2 mi
Dew point52°
Fri, 2364° / 48°0.18Light rain
64 °Light rain

Calypso, Friday, 23 October

Light rain. High 64°, low 48°.

Pressure29.44 inHg
Wind28 mph NW
Humidity66%
Visibility—
Dew point51°
Sat, 2449° / 40°0.07Light rain
49 °Light rain

Calypso, Saturday, 24 October

Light rain. High 49°, low 40°.

Pressure30.27 inHg
Wind22.6 mph NW
Humidity54%
Visibility—
Dew point28°
Sun, 2560° / 37°0Overcast
60 °Overcast

Calypso, Sunday, 25 October

Overcast. High 60°, low 37°.

Pressure30.09 inHg
Wind16.5 mph NE
Humidity37%
Visibility—
Dew point26°
Mon, 2647° / 39°0Overcast
47 °Overcast

Calypso, Monday, 26 October

Overcast. High 47°, low 39°.

Pressure30.24 inHg
Wind17.3 mph NE
Humidity62%
Visibility—
Dew point32°
Tue, 2762° / 46°0Overcast
62 °Overcast

Calypso, Tuesday, 27 October

Overcast. High 62°, low 46°.

Pressure30.06 inHg
Wind14.7 mph E
Humidity63%
Visibility—
Dew point42°
Wed, 2862° / 49°0Overcast
62 °Overcast

Calypso, Wednesday, 28 October

Overcast. High 62°, low 49°.

Pressure29.68 inHg
Wind19.6 mph W
Humidity56%
Visibility—
Dew point44°
Thu, 2944° / 42°0Overcast
44 °Overcast

Calypso, Thursday, 29 October

Overcast. High 44°, low 42°.

Pressure29.91 inHg
Wind24.9 mph W
Humidity71%
Visibility—
Dew point34°
Fri, 3061° / 38°0Partly cloudy
61 °Partly cloudy

Calypso, Friday, 30 October

Partly cloudy. High 61°, low 38°.

Pressure29.94 inHg
Wind10.3 mph SW
Humidity46%
Visibility—
Dew point32°
Sat, 3150° / 39°0Clear
50 °Clear

Calypso, Saturday, 31 October

Clear. High 50°, low 39°.

Pressure30.12 inHg
Wind11.7 mph NE
Humidity54%
Visibility—
Dew point29°
Sun, 0140° / 31°0Overcast
40 °Overcast

Calypso, Sunday, 1 November

Overcast. High 40°, low 31°.

Pressure30.53 inHg
Wind11.4 mph N
Humidity44%
Visibility—
Dew point17°
Mon, 0244° / 29°0.01Light snow
44 °Light snow

Calypso, Monday, 2 November

Light snow. High 44°, low 29°.

Pressure30.36 inHg
Wind10.8 mph N
Humidity40%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1645° / 27°0.01Climate normal
45 °Climate normal

Calypso, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.01 in
Chance of precipitation15%
Record high65° (2001)
Record low-1° (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 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.