As of 06:55 MDT

Weather in Tattnall, MT

31°Current weather

Tattnall, Saturday, 24 October, 06:55

Clear. Feels like 21°. High 47°, low 31°.

Pressure30.33 inHg
Wind13.6 mph NW
Humidity90%
Visibility6.2 mi
Dew point29°

Monthly outlook for Tattnall, MT: average high 47°, average low 33.3°. That is 0.3° below 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 8 November (55.6°), the coolest 5 November (22.2°).

47°/33.3°
Average high / low
−0.3°
Below normal
2 / 2
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
24 October – 2 November47.5°49.3°-1°
3 November – 12 November46.2°42.8°+1.9°
13 November – 22 Novemberat normal38.7°—

October records over 66 years

86.4°1 October 2011All-time high
-6°23 October 2020All-time low

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

Sun, 2546° / 29°0Clear
46 °Clear

Tattnall, Sunday, 25 October

Clear. High 46°, low 29°.

Pressure30.56 inHg
Wind9.6 mph NE
Humidity63%
Visibility6.2 mi
Dew point21°
Mon, 2647° / 32°0Partly cloudy
47 °Partly cloudy

Tattnall, Monday, 26 October

Partly cloudy. High 47°, low 32°.

Pressure30.33 inHg
Wind17 mph SE
Humidity63%
Visibility6.2 mi
Dew point27°
Tue, 2737° / 33°0.26Snow
37 °Snow

Tattnall, Tuesday, 27 October

Snow. High 37°, low 33°.

Pressure29.94 inHg
Wind8.2 mph SE
Humidity93%
Visibility2.6 mi
Dew point31°
Wed, 2849° / 35°0.02Light rain
49 °Light rain

Tattnall, Wednesday, 28 October

Light rain. High 49°, low 35°.

Pressure29.97 inHg
Wind12.6 mph NW
Humidity71%
Visibility—
Dew point33°
Thu, 2948° / 33°0Overcast
48 °Overcast

Tattnall, Thursday, 29 October

Overcast. High 48°, low 33°.

Pressure30.00 inHg
Wind13.8 mph NE
Humidity63%
Visibility—
Dew point31°
Fri, 3053° / 38°0Overcast
53 °Overcast

Tattnall, Friday, 30 October

Overcast. High 53°, low 38°.

Pressure30.03 inHg
Wind13.6 mph E
Humidity38%
Visibility—
Dew point23°
Sat, 3154° / 39°0Overcast
54 °Overcast

Tattnall, Saturday, 31 October

Overcast. High 54°, low 39°.

Pressure30.00 inHg
Wind8.2 mph S
Humidity34%
Visibility—
Dew point21°
Sun, 0147° / 35°0.04Light rain
47 °Light rain

Tattnall, Sunday, 1 November

Light rain. High 47°, low 35°.

Pressure30.18 inHg
Wind17.2 mph NW
Humidity60%
Visibility—
Dew point31°
Mon, 0249° / 32°0Clear
49 °Clear

Tattnall, Monday, 2 November

Clear. High 49°, low 32°.

Pressure30.47 inHg
Wind9.8 mph NW
Humidity29%
Visibility—
Dew point12°
Tue, 0352° / 34°0Clear
52 °Clear

Tattnall, Tuesday, 3 November

Clear. High 52°, low 34°.

Pressure30.39 inHg
Wind7.2 mph N
Humidity29%
Visibility—
Dew point15°
Wed, 0439° / 31°0Overcast
39 °Overcast

Tattnall, Wednesday, 4 November

Overcast. High 39°, low 31°.

Pressure30.47 inHg
Wind13.1 mph N
Humidity52%
Visibility—
Dew point20°
Thu, 0531° / 22°0Clear
31 °Clear

Tattnall, Thursday, 5 November

Clear. High 31°, low 22°.

Pressure30.56 inHg
Wind10.6 mph SE
Humidity34%
Visibility—
Dew point3°
Fri, 0645° / 23°0Overcast
45 °Overcast

Tattnall, Friday, 6 November

Overcast. High 45°, low 23°.

Pressure30.03 inHg
Wind22.3 mph S
Humidity48%
Visibility—
Dew point17°
Sat, 0755° / 45°0Overcast
55 °Overcast

Tattnall, Saturday, 7 November

Overcast. High 55°, low 45°.

Pressure29.62 inHg
Wind31.2 mph W
Humidity41%
Visibility—
Dew point30°
Sun, 0856° / 41°0Partly cloudy
56 °Partly cloudy

Tattnall, Sunday, 8 November

Partly cloudy. High 56°, low 41°.

Pressure30.09 inHg
Wind14.1 mph NW
Humidity37%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0940° / 24°0.04Climate normal
40 °Climate normal

Tattnall, Monday, 9 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (2016)
Record low3° (2000)
Tue, 1040° / 24°0.02Climate normal
40 °Climate normal

Tattnall, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation17%
Record high64° (1989)
Record low1° (2022)
Wed, 1139° / 23°0.02Climate normal
39 °Climate normal

Tattnall, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.02 in
Chance of precipitation15%
Record high59° (1999)
Record low-14° (2019)
Thu, 1240° / 22°0.03Climate normal
40 °Climate normal

Tattnall, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.03 in
Chance of precipitation15%
Record high72° (1999)
Record low-6° (2014)
Fri, 1341° / 25°0.02Climate normal
41 °Climate normal

Tattnall, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (1999)
Record low-7° (2014)
Sat, 1441° / 25°0.02Climate normal
41 °Climate normal

Tattnall, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (2001)
Record low-3° (2014)
Sun, 1541° / 23°0.01Climate normal
41 °Climate normal

Tattnall, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high41°
Average low23°
Average precipitation0.01 in
Chance of precipitation13%
Record high61° (1975)
Record low-10° (2014)
Mon, 1641° / 24°0.02Climate normal
41 °Climate normal

Tattnall, Monday, 16 November

Climate normal for this date — 60-year average.

Average high41°
Average low24°
Average precipitation0.02 in
Chance of precipitation13%
Record high62° (2001)
Record low-10° (1996)
Tue, 1738° / 22°0.02Climate normal
38 °Climate normal

Tattnall, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation10%
Record high59° (1976)
Record low-4° (1996)
Wed, 1839° / 22°0.02Climate normal
39 °Climate normal

Tattnall, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high39°
Average low22°
Average precipitation0.02 in
Chance of precipitation20%
Record high64° (2008)
Record low-7° (1978)
Thu, 1937° / 22°0.02Climate normal
37 °Climate normal

Tattnall, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation15%
Record high57° (1989)
Record low-10° (1978)
Fri, 2037° / 21°0.02Climate normal
37 °Climate normal

Tattnall, Friday, 20 November

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation8%
Record high58° (1968)
Record low-15° (1978)
Sat, 2136° / 20°0.02Climate normal
36 °Climate normal

Tattnall, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high36°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high60° (1974)
Record low-16° (1996)
Sun, 2235° / 20°0.02Climate normal
35 °Climate normal

Tattnall, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation15%
Record high55° (2005)
Record low-13° (1996)

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.