Monthly outlook for Tattnall, MT: average high 50.6°, average low 35.4°. That is 5.8° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 8 November (62.5°), the coolest 21 November (28.2°).
50.6°/35.4°
Average high / low
+5.8°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
55.6°
41.2°
+8°
16 November – 25 November
42.3°
36.7°
+3.1°
26 November – 5 December
at normal
31.6°
—
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).
Sat, 0760° / 35°0
60 °
Tattnall, Saturday, 7 November
Clear. High 60°, low 35°.
Pressure30.03 inHg
Wind16 mph W
Humidity39%
Visibility6.2 mi
Dew point33°
Sun, 0863° / 36°0
63 °
Tattnall, Sunday, 8 November
Overcast. High 63°, low 36°.
Pressure29.85 inHg
Wind5.1 mph S
Humidity55%
Visibility6.2 mi
Dew point37°
Mon, 0951° / 37°0
51 °
Tattnall, Monday, 9 November
Overcast. High 51°, low 37°.
Pressure30.12 inHg
Wind7.3 mph NW
Humidity47%
Visibility6.2 mi
Dew point27°
Tue, 1058° / 36°0
58 °
Tattnall, Tuesday, 10 November
Clear. High 58°, low 36°.
Pressure29.91 inHg
Wind17.1 mph W
Humidity49%
Visibility6.2 mi
Dew point38°
Wed, 1157° / 41°0
57 °
Tattnall, Wednesday, 11 November
Clear. High 57°, low 41°.
Pressure30.12 inHg
Wind22.1 mph NW
Humidity56%
Visibility—
Dew point35°
Thu, 1251° / 37°0
51 °
Tattnall, Thursday, 12 November
Clear. High 51°, low 37°.
Pressure30.06 inHg
Wind16.2 mph SE
Humidity57%
Visibility—
Dew point31°
Fri, 1353° / 36°0
53 °
Tattnall, Friday, 13 November
Partly cloudy. High 53°, low 36°.
Pressure29.83 inHg
Wind18.3 mph SE
Humidity54%
Visibility—
Dew point30°
Sat, 1454° / 39°0.04
54 °
Tattnall, Saturday, 14 November
Light rain. High 54°, low 39°.
Pressure29.56 inHg
Wind11 mph SW
Humidity44%
Visibility—
Dew point28°
Sun, 1555° / 46°0
55 °
Tattnall, Sunday, 15 November
Clear. High 55°, low 46°.
Pressure29.71 inHg
Wind20.2 mph W
Humidity40%
Visibility—
Dew point29°
Mon, 1650° / 39°0
50 °
Tattnall, Monday, 16 November
Clear. High 50°, low 39°.
Pressure29.85 inHg
Wind22.1 mph W
Humidity35%
Visibility—
Dew point21°
Tue, 1744° / 35°0
44 °
Tattnall, Tuesday, 17 November
Overcast. High 44°, low 35°.
Pressure29.97 inHg
Wind7.9 mph N
Humidity55%
Visibility—
Dew point25°
Wed, 1841° / 30°0
41 °
Tattnall, Wednesday, 18 November
Clear. High 41°, low 30°.
Pressure30.18 inHg
Wind9.4 mph N
Humidity60%
Visibility—
Dew point24°
Thu, 1941° / 31°0
41 °
Tattnall, Thursday, 19 November
Overcast. High 41°, low 31°.
Pressure30.18 inHg
Wind6.3 mph NW
Humidity51%
Visibility—
Dew point20°
Fri, 2038° / 28°0
38 °
Tattnall, Friday, 20 November
Clear. High 38°, low 28°.
Pressure30.42 inHg
Wind6 mph S
Humidity55%
Visibility—
Dew point20°
Sat, 2140° / 28°0
40 °
Tattnall, Saturday, 21 November
Clear. High 40°, low 28°.
Pressure30.36 inHg
Wind6.1 mph SE
Humidity66%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2235° / 20°0.02
35 °
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)
Mon, 2335° / 19°0.02
35 °
Tattnall, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (2017)
Record low-30° (1985)
Tue, 2435° / 20°0.03
35 °
Tattnall, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.03 in
Chance of precipitation15%
Record high53° (1970)
Record low-23° (1985)
Wed, 2533° / 19°0.03
33 °
Tattnall, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.03 in
Chance of precipitation22%
Record high54° (1962)
Record low-17° (2010)
Thu, 2632° / 18°0.02
32 °
Tattnall, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.02 in
Chance of precipitation7%
Record high59° (1962)
Record low-23° (1985)
Fri, 2731° / 17°0.01
31 °
Tattnall, Friday, 27 November
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.01 in
Chance of precipitation10%
Record high55° (2011)
Record low-32° (1985)
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)
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.