As of 11:59 MST

Weather in Tattnall, MT

51°

Tattnall, Thursday, 12 November, 11:59

Overcast. Feels like 50°. High 54°, low 33°.

Pressure30.00 inHg

Wind7.4 mph SE

Humidity78%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Tattnall, MT: average high 35.3°, average low 20.7°. That is 1° below the climate normal for November. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 13 November (57°), the coolest 26 November (-17.7°).

35.3°/20.7°

Average high / low

−1°

Below normal

6 / 2

Wet days / normal

1.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 November – 21 November	45.8°	39.2°	+3.7°
22 November – 1 December	17.8°	33.1°	-8.5°
2 December – 11 December	at normal	29.5°	—

November records over 66 years

71.6°12 November 1999All-time high

-32.1°27 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Valleytown (15 mi).

Fri, 1357° / 30°

57 °

Tattnall, Friday, 13 November

Overcast. High 57°, low 30°.

Pressure29.74 inHg

Wind12.7 mph SE

Humidity63%

Visibility6.2 mi

Dew point37°

Sat, 1452° / 35°

52 °

Tattnall, Saturday, 14 November

Overcast. High 52°, low 35°.

Pressure29.74 inHg

Wind8.5 mph SE

Humidity66%

Visibility6.2 mi

Dew point37°

Sun, 1554° / 35°

54 °

Tattnall, Sunday, 15 November

Partly cloudy. High 54°, low 35°.

Pressure29.91 inHg

Wind7.5 mph S

Humidity63%

Visibility6.2 mi

Dew point37°

Mon, 1653° / 35°

53 °

Tattnall, Monday, 16 November

Overcast. High 53°, low 35°.

Pressure29.91 inHg

Wind6.6 mph N

Humidity66%

Visibility—

Dew point35°

Tue, 1748° / 41°

48 °

Tattnall, Tuesday, 17 November

Overcast. High 48°, low 41°.

Pressure30.09 inHg

Wind10.3 mph NW

Humidity58%

Visibility—

Dew point31°

Wed, 1843° / 35°

0.46

43 °

Tattnall, Wednesday, 18 November

Snow. High 43°, low 35°.

Pressure29.71 inHg

Wind14.1 mph N

Humidity77%

Visibility—

Dew point36°

Thu, 1935° / 32°

0.77

35 °

Tattnall, Thursday, 19 November

Snow. High 35°, low 32°.

Pressure30.03 inHg

Wind17.1 mph N

Humidity100%

Visibility—

Dew point34°

Fri, 2031° / 28°

0.05

31 °

Tattnall, Friday, 20 November

Light snow. High 31°, low 28°.

Pressure30.47 inHg

Wind12.3 mph E

Humidity85%

Visibility—

Dew point26°

Sat, 2131° / 18°

0.16

31 °

Tattnall, Saturday, 21 November

Light snow. High 31°, low 18°.

Pressure30.15 inHg

Wind12.7 mph E

Humidity95%

Visibility—

Dew point29°

Sun, 2231° / 17°

0.08

31 °

Tattnall, Sunday, 22 November

Light snow. High 31°, low 17°.

Pressure29.77 inHg

Wind10.9 mph W

Humidity81%

Visibility—

Dew point22°

Mon, 2328° / 13°

0.1

28 °

Tattnall, Monday, 23 November

Light snow. High 28°, low 13°.

Pressure30.09 inHg

Wind6.9 mph NE

Humidity96%

Visibility—

Dew point24°

Tue, 2420° / 12°

0.01

20 °

Tattnall, Tuesday, 24 November

Light snow. High 20°, low 12°.

Pressure30.42 inHg

Wind12 mph NW

Humidity90%

Visibility—

Dew point17°

Wed, 2512° / -11°

12 °

Tattnall, Wednesday, 25 November

Overcast. High 12°, low -11°.

Pressure30.68 inHg

Wind10.2 mph NW

Humidity89%

Visibility—

Dew point7°

Thu, 260° / -18°

0 °

Tattnall, Thursday, 26 November

Clear. High 0°, low -18°.

Pressure30.71 inHg

Wind7.4 mph SW

Humidity89%

Visibility—

Dew point-10°

Fri, 2716° / -1°

16 °

Tattnall, Friday, 27 November

Light snow. High 16°, low -1°.

Pressure30.39 inHg

Wind8.3 mph NW

Humidity91%

Visibility—

Dew point10°

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

Sat, 2833° / 18°

0.02

33 °

Tattnall, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.02 in

Chance of precipitation15%

Record high59° (2021)

Record low-26° (1985)

Sun, 2933° / 18°

0.02

33 °

Tattnall, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.02 in

Chance of precipitation18%

Record high50° (1968)

Record low-26° (1985)

Mon, 3032° / 17°

0.02

32 °

Tattnall, Monday, 30 November

Climate normal for this date — 60-year average.

Average high32°

Average low17°

Average precipitation0.02 in

Chance of precipitation12%

Record high51° (2021)

Record low-15° (2014)

Tue, 0132° / 16°

0.03

32 °

Tattnall, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high32°

Average low16°

Average precipitation0.03 in

Chance of precipitation17%

Record high61° (2021)

Record low-18° (2014)

Wed, 0231° / 15°

0.03

31 °

Tattnall, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.03 in

Chance of precipitation15%

Record high51° (1988)

Record low-28° (1985)

Thu, 0332° / 14°

0.02

32 °

Tattnall, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high32°

Average low14°

Average precipitation0.02 in

Chance of precipitation17%

Record high53° (1989)

Record low-28° (1972)

Fri, 0431° / 15°

0.02

31 °

Tattnall, Friday, 4 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.02 in

Chance of precipitation12%

Record high54° (1979)

Record low-25° (1972)

Sat, 0529° / 13°

0.02

29 °

Tattnall, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high29°

Average low13°

Average precipitation0.02 in

Chance of precipitation17%

Record high54° (2012)

Record low-25° (1970)

Sun, 0627° / 11°

0.02

27 °

Tattnall, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high27°

Average low11°

Average precipitation0.02 in

Chance of precipitation15%

Record high49° (1987)

Record low-26° (1977)

Mon, 0727° / 12°

0.02

27 °

Tattnall, Monday, 7 December

Climate normal for this date — 60-year average.

Average high27°

Average low12°

Average precipitation0.02 in

Chance of precipitation12%

Record high50° (1987)

Record low-33° (1972)

Tue, 0829° / 10°

0.02

29 °

Tattnall, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high29°

Average low10°

Average precipitation0.02 in

Chance of precipitation13%

Record high55° (2020)

Record low-33° (1972)

Wed, 0929° / 12°

0.01

29 °

Tattnall, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high29°

Average low12°

Average precipitation0.01 in

Chance of precipitation8%

Record high54° (2015)

Record low-47° (1977)

Thu, 1030° / 13°

0.02

30 °

Tattnall, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high30°

Average low13°

Average precipitation0.02 in

Chance of precipitation18%

Record high49° (1987)

Record low-20° (1977)

Fri, 1130° / 14°

0.03

30 °

Tattnall, Friday, 11 December

Climate normal for this date — 60-year average.

Average high30°

Average low14°

Average precipitation0.03 in

Chance of precipitation15%

Record high52° (2004)

Record low-20° (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 Tattnall, 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 Tattnall, 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.