Monthly outlook for Chelsea, MT: average high 55.9°, average low 37.3°. That is 7.6° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 8 November (61.7°), the coolest 3 November (28.2°).
55.9°/37.3°
Average high / low
+7.6°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
55.8°
43.2°
+7°
13 November – 22 November
56°
38.7°
+9.6°
23 November – 2 December
at normal
32.8°
—
November records over 66 years
73.8°12 November 1999All-time high
-29°27 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Poplar (7 mi).
Wed, 0453° / 29°0
53 °
Chelsea, Wednesday, 4 November
Clear. High 53°, low 29°.
Pressure30.00 inHg
Wind1.3 mph N
Humidity52%
Visibility6.2 mi
Dew point34°
Thu, 0552° / 29°0
52 °
Chelsea, Thursday, 5 November
Clear. High 52°, low 29°.
Pressure30.09 inHg
Wind4.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point36°
Fri, 0651° / 35°0.01
51 °
Chelsea, Friday, 6 November
Light rain. High 51°, low 35°.
Pressure30.09 inHg
Wind12.2 mph W
Humidity52%
Visibility6.2 mi
Dew point32°
Sat, 0760° / 36°0
60 °
Chelsea, Saturday, 7 November
Clear. High 60°, low 36°.
Pressure30.09 inHg
Wind8.2 mph NW
Humidity46%
Visibility6.2 mi
Dew point37°
Sun, 0862° / 38°0
62 °
Chelsea, Sunday, 8 November
Overcast. High 62°, low 38°.
Pressure29.88 inHg
Wind16.8 mph NW
Humidity54%
Visibility—
Dew point37°
Mon, 0954° / 42°0
54 °
Chelsea, Monday, 9 November
Partly cloudy. High 54°, low 42°.
Pressure30.00 inHg
Wind21.4 mph W
Humidity44%
Visibility—
Dew point31°
Tue, 1056° / 41°0
56 °
Chelsea, Tuesday, 10 November
Overcast. High 56°, low 41°.
Pressure30.00 inHg
Wind6.2 mph S
Humidity39%
Visibility—
Dew point26°
Wed, 1156° / 40°0
56 °
Chelsea, Wednesday, 11 November
Clear. High 56°, low 40°.
Pressure30.12 inHg
Wind6.9 mph SE
Humidity49%
Visibility—
Dew point31°
Thu, 1260° / 41°0
60 °
Chelsea, Thursday, 12 November
Mostly clear. High 60°, low 41°.
Pressure29.97 inHg
Wind11.2 mph S
Humidity44%
Visibility—
Dew point31°
Fri, 1359° / 41°0
59 °
Chelsea, Friday, 13 November
Clear. High 59°, low 41°.
Pressure29.94 inHg
Wind8.7 mph S
Humidity48%
Visibility—
Dew point33°
Sat, 1457° / 42°0
57 °
Chelsea, Saturday, 14 November
Clear. High 57°, low 42°.
Pressure30.18 inHg
Wind6.4 mph W
Humidity44%
Visibility—
Dew point31°
Sun, 1554° / 39°0
54 °
Chelsea, Sunday, 15 November
Clear. High 54°, low 39°.
Pressure30.21 inHg
Wind7.9 mph E
Humidity38%
Visibility—
Dew point24°
Mon, 1656° / 37°0
56 °
Chelsea, Monday, 16 November
Clear. High 56°, low 37°.
Pressure30.12 inHg
Wind10.5 mph SE
Humidity43%
Visibility—
Dew point27°
Tue, 1757° / 38°0
57 °
Chelsea, Tuesday, 17 November
Clear. High 57°, low 38°.
Pressure30.03 inHg
Wind9.6 mph SE
Humidity41%
Visibility—
Dew point27°
Wed, 1852° / 40°0
52 °
Chelsea, Wednesday, 18 November
Overcast. High 52°, low 40°.
Pressure29.97 inHg
Wind7.3 mph NE
Humidity52%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1937° / 23°0.02
37 °
Chelsea, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.02 in
Chance of precipitation15%
Record high59° (1989)
Record low-5° (1978)
Fri, 2038° / 21°0.02
38 °
Chelsea, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.02 in
Chance of precipitation10%
Record high57° (1962)
Record low-13° (1978)
Sat, 2135° / 20°0.01
35 °
Chelsea, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.01 in
Chance of precipitation12%
Record high57° (1974)
Record low-17° (1996)
Sun, 2235° / 20°0.02
35 °
Chelsea, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high56° (2017)
Record low-9° (1977)
Mon, 2335° / 19°0.02
35 °
Chelsea, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.02 in
Chance of precipitation13%
Record high64° (2017)
Record low-21° (1985)
Tue, 2435° / 20°0.02
35 °
Chelsea, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high53° (2017)
Record low-21° (1985)
Wed, 2533° / 19°0.03
33 °
Chelsea, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.03 in
Chance of precipitation18%
Record high59° (1960)
Record low-19° (1996)
Thu, 2632° / 18°0.02
32 °
Chelsea, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.02 in
Chance of precipitation13%
Record high59° (1998)
Record low-20° (1985)
Fri, 2731° / 17°0.02
31 °
Chelsea, Friday, 27 November
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.02 in
Chance of precipitation8%
Record high52° (1963)
Record low-29° (1985)
Sat, 2833° / 18°0.02
33 °
Chelsea, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.02 in
Chance of precipitation12%
Record high53° (2020)
Record low-20° (1985)
Sun, 2933° / 18°0.02
33 °
Chelsea, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.02 in
Chance of precipitation17%
Record high49° (2021)
Record low-26° (1985)
Mon, 3032° / 18°0.02
32 °
Chelsea, Monday, 30 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.02 in
Chance of precipitation15%
Record high50° (1999)
Record low-18° (2025)
Tue, 0132° / 17°0.03
32 °
Chelsea, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.03 in
Chance of precipitation17%
Record high64° (2021)
Record low-18° (1985)
Wed, 0231° / 15°0.03
31 °
Chelsea, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.03 in
Chance of precipitation17%
Record high53° (1998)
Record low-29° (1985)
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 Chelsea, 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 Chelsea, 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.