As of 05:25 MDT

Weather in Calypso, MT

37°Current weather

Calypso, Tuesday, 13 October, 05:25

Overcast. Feels like 37°. High 56°, low 37°.

Pressure30.03 inHg
Wind1.3 mph NW
Humidity90%
Visibility6.2 mi
Dew point34°

Monthly outlook for Calypso, MT: average high 57.9°, average low 41°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 19 October (73°), the coolest 16 October (31.3°).

57.9°/41°
Average high / low
+0.3°
Above normal
2 / 2
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October60°58.7°+0.7°
23 October – 1 November54.5°53.6°+0.5°
2 November – 11 Novemberat normal47.4°—

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).

Wed, 1459° / 34°0Mostly clear
59 °Mostly clear

Calypso, Wednesday, 14 October

Mostly clear. High 59°, low 34°.

Pressure30.18 inHg
Wind5.3 mph S
Humidity56%
Visibility6.2 mi
Dew point37°
Thu, 1553° / 37°0Clear
53 °Clear

Calypso, Thursday, 15 October

Clear. High 53°, low 37°.

Pressure30.59 inHg
Wind13.6 mph NW
Humidity45%
Visibility6.2 mi
Dew point25°
Fri, 1665° / 31°0Clear
65 °Clear

Calypso, Friday, 16 October

Clear. High 65°, low 31°.

Pressure30.47 inHg
Wind9.3 mph S
Humidity42%
Visibility6.2 mi
Dew point29°
Sat, 1773° / 41°0Overcast
73 °Overcast

Calypso, Saturday, 17 October

Overcast. High 73°, low 41°.

Pressure29.91 inHg
Wind12.3 mph SW
Humidity36%
Visibility—
Dew point34°
Sun, 1862° / 50°0Mostly clear
62 °Mostly clear

Calypso, Sunday, 18 October

Mostly clear. High 62°, low 50°.

Pressure30.06 inHg
Wind12.8 mph NW
Humidity37%
Visibility—
Dew point31°
Mon, 1973° / 48°0Mostly clear
73 °Mostly clear

Calypso, Monday, 19 October

Mostly clear. High 73°, low 48°.

Pressure29.74 inHg
Wind11.4 mph S
Humidity30%
Visibility—
Dew point32°
Tue, 2064° / 54°0Overcast
64 °Overcast

Calypso, Tuesday, 20 October

Overcast. High 64°, low 54°.

Pressure29.59 inHg
Wind16.9 mph NW
Humidity37%
Visibility—
Dew point36°
Wed, 2152° / 41°0.33Rain
52 °Rain

Calypso, Wednesday, 21 October

Rain. High 52°, low 41°.

Pressure29.91 inHg
Wind18.1 mph N
Humidity49%
Visibility—
Dew point33°
Thu, 2242° / 39°0.12Light rain
42 °Light rain

Calypso, Thursday, 22 October

Light rain. High 42°, low 39°.

Pressure29.91 inHg
Wind10.2 mph N
Humidity91%
Visibility—
Dew point39°
Fri, 2349° / 38°0.01Light snow
49 °Light snow

Calypso, Friday, 23 October

Light snow. High 49°, low 38°.

Pressure30.15 inHg
Wind19.2 mph NW
Humidity51%
Visibility—
Dew point28°
Sat, 2453° / 41°0Overcast
53 °Overcast

Calypso, Saturday, 24 October

Overcast. High 53°, low 41°.

Pressure30.27 inHg
Wind12.8 mph NW
Humidity46%
Visibility—
Dew point30°
Sun, 2553° / 41°0.01Light rain
53 °Light rain

Calypso, Sunday, 25 October

Light rain. High 53°, low 41°.

Pressure30.15 inHg
Wind8.5 mph N
Humidity47%
Visibility—
Dew point30°
Mon, 2651° / 40°0Overcast
51 °Overcast

Calypso, Monday, 26 October

Overcast. High 51°, low 40°.

Pressure30.36 inHg
Wind7.8 mph W
Humidity47%
Visibility—
Dew point27°
Tue, 2758° / 40°0Overcast
58 °Overcast

Calypso, Tuesday, 27 October

Overcast. High 58°, low 40°.

Pressure30.18 inHg
Wind18.5 mph NW
Humidity50%
Visibility—
Dew point34°
Wed, 2863° / 45°0Overcast
63 °Overcast

Calypso, Wednesday, 28 October

Overcast. High 63°, low 45°.

Pressure29.94 inHg
Wind11.9 mph SW
Humidity39%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2952° / 34°0.04Climate normal
52 °Climate normal

Calypso, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.04 in
Chance of precipitation22%
Record high75° (1968)
Record low5° (1991)
Fri, 3051° / 32°0.02Climate normal
51 °Climate normal

Calypso, Friday, 30 October

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (1987)
Record low-15° (1991)
Sat, 3151° / 33°0.03Climate normal
51 °Climate normal

Calypso, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high78° (1990)
Record low4° (1991)
Sun, 0150° / 33°0.02Climate normal
50 °Climate normal

Calypso, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (1965)
Record low4° (1984)
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)

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.