As of 08:18 MDT

Weather in Calypso, MT

30°Current weather

Calypso, Friday, 16 October, 08:18

Clear. Feels like 26°. High 63°, low 28°.

Pressure30.68 inHg
Wind4.4 mph S
Humidity94%
Visibility6.2 mi
Dew point29°

Monthly outlook for Calypso, MT: average high 60.2°, average low 40.3°. That is 2.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 22 October (74°), the coolest 16 October (28.5°).

60.2°/40.3°
Average high / low
+2.2°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October64.1°58.2°+3.3°
26 October – 4 November53.6°51.7°+1.1°
5 November – 14 Novemberat normal45.9°—

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).

Sat, 1774° / 39°0Mostly clear
74 °Mostly clear

Calypso, Saturday, 17 October

Mostly clear. High 74°, low 39°.

Pressure29.97 inHg
Wind11.7 mph SW
Humidity33%
Visibility6.2 mi
Dew point35°
Sun, 1863° / 46°0Overcast
63 °Overcast

Calypso, Sunday, 18 October

Overcast. High 63°, low 46°.

Pressure30.12 inHg
Wind8.7 mph NE
Humidity34%
Visibility6.2 mi
Dew point30°
Mon, 1968° / 42°0Clear
68 °Clear

Calypso, Monday, 19 October

Clear. High 68°, low 42°.

Pressure30.00 inHg
Wind9.2 mph SE
Humidity50%
Visibility6.2 mi
Dew point42°
Tue, 2068° / 46°0Clear
68 °Clear

Calypso, Tuesday, 20 October

Clear. High 68°, low 46°.

Pressure29.88 inHg
Wind10.2 mph NW
Humidity55%
Visibility—
Dew point45°
Wed, 2162° / 45°0Clear
62 °Clear

Calypso, Wednesday, 21 October

Clear. High 62°, low 45°.

Pressure30.18 inHg
Wind8.7 mph NW
Humidity72%
Visibility—
Dew point46°
Thu, 2274° / 47°0Partly cloudy
74 °Partly cloudy

Calypso, Thursday, 22 October

Partly cloudy. High 74°, low 47°.

Pressure29.94 inHg
Wind18.4 mph SE
Humidity29%
Visibility—
Dew point32°
Fri, 2373° / 41°0.03Light rain
73 °Light rain

Calypso, Friday, 23 October

Light rain. High 73°, low 41°.

Pressure29.50 inHg
Wind27.1 mph W
Humidity49%
Visibility—
Dew point51°
Sat, 2448° / 39°0.04Light rain
48 °Light rain

Calypso, Saturday, 24 October

Light rain. High 48°, low 39°.

Pressure30.24 inHg
Wind29.7 mph W
Humidity41%
Visibility—
Dew point23°
Sun, 2549° / 34°0Clear
49 °Clear

Calypso, Sunday, 25 October

Clear. High 49°, low 34°.

Pressure30.30 inHg
Wind8.2 mph E
Humidity36%
Visibility—
Dew point19°
Mon, 2651° / 33°0Overcast
51 °Overcast

Calypso, Monday, 26 October

Overcast. High 51°, low 33°.

Pressure30.21 inHg
Wind11 mph SE
Humidity35%
Visibility—
Dew point19°
Tue, 2759° / 36°0Clear
59 °Clear

Calypso, Tuesday, 27 October

Clear. High 59°, low 36°.

Pressure29.88 inHg
Wind9.1 mph E
Humidity47%
Visibility—
Dew point30°
Wed, 2852° / 41°0Overcast
52 °Overcast

Calypso, Wednesday, 28 October

Overcast. High 52°, low 41°.

Pressure29.83 inHg
Wind9.2 mph E
Humidity77%
Visibility—
Dew point40°
Thu, 2953° / 44°0Overcast
53 °Overcast

Calypso, Thursday, 29 October

Overcast. High 53°, low 44°.

Pressure29.97 inHg
Wind12 mph NW
Humidity59%
Visibility—
Dew point35°
Fri, 3055° / 43°0Overcast
55 °Overcast

Calypso, Friday, 30 October

Overcast. High 55°, low 43°.

Pressure30.27 inHg
Wind8.1 mph NE
Humidity57%
Visibility—
Dew point36°
Sat, 3153° / 40°0Overcast
53 °Overcast

Calypso, Saturday, 31 October

Overcast. High 53°, low 40°.

Pressure30.24 inHg
Wind14.2 mph SE
Humidity55%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.