As of 06:15 CDT

Weather in Dorchester, IA

53°Current weather

Dorchester, Saturday, 31 October, 06:15

Overcast. Feels like 52°. High 59°, low 51°.

Pressure30.30 inHg
Wind7.7 mph SE
Humidity78%
Visibility6.2 mi
Dew point46°

Monthly outlook for Dorchester, IA: average high 58.3°, average low 46.4°. That is 6.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 1 November (65.1°), the coolest 14 November (36.1°).

58.3°/46.4°
Average high / low
+6.7°
Above normal
5 / 4
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November60°48.2°+6.5°
10 November – 19 November55.6°42.8°+7.1°
20 November – 29 Novemberat normal37.6°—

October records over 66 years

85.8°3 October 2025All-time high
19.8°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Caledonia (11 mi).

Sun, 0165° / 50°0Overcast
65 °Overcast

Dorchester, Sunday, 1 November

Overcast. High 65°, low 50°.

Pressure30.27 inHg
Wind6.6 mph SE
Humidity71%
Visibility6.2 mi
Dew point52°
Mon, 0261° / 53°0.26Rain
61 °Rain

Dorchester, Monday, 2 November

Rain. High 61°, low 53°.

Pressure29.97 inHg
Wind10.7 mph SE
Humidity80%
Visibility6.2 mi
Dew point50°
Tue, 0365° / 60°0.57Rain
65 °Rain

Dorchester, Tuesday, 3 November

Rain. High 65°, low 60°.

Pressure29.80 inHg
Wind12.3 mph S
Humidity96%
Visibility4.9 mi
Dew point63°
Wed, 0453° / 46°0.06Light rain
53 °Light rain

Dorchester, Wednesday, 4 November

Light rain. High 53°, low 46°.

Pressure29.94 inHg
Wind11.3 mph N
Humidity72%
Visibility—
Dew point42°
Thu, 0553° / 50°0.79Rain
53 °Rain

Dorchester, Thursday, 5 November

Rain. High 53°, low 50°.

Pressure29.85 inHg
Wind13.8 mph NE
Humidity97%
Visibility—
Dew point50°
Fri, 0660° / 45°0Overcast
60 °Overcast

Dorchester, Friday, 6 November

Overcast. High 60°, low 45°.

Pressure29.94 inHg
Wind9.7 mph S
Humidity63%
Visibility—
Dew point45°
Sat, 0759° / 48°0Overcast
59 °Overcast

Dorchester, Saturday, 7 November

Overcast. High 59°, low 48°.

Pressure30.00 inHg
Wind5.2 mph SE
Humidity64%
Visibility—
Dew point45°
Sun, 0862° / 48°0Overcast
62 °Overcast

Dorchester, Sunday, 8 November

Overcast. High 62°, low 48°.

Pressure30.03 inHg
Wind5.7 mph NE
Humidity57%
Visibility—
Dew point43°
Mon, 0964° / 46°0Clear
64 °Clear

Dorchester, Monday, 9 November

Clear. High 64°, low 46°.

Pressure29.97 inHg
Wind4.6 mph NW
Humidity55%
Visibility—
Dew point44°
Tue, 1063° / 47°0Clear
63 °Clear

Dorchester, Tuesday, 10 November

Clear. High 63°, low 47°.

Pressure29.94 inHg
Wind16.4 mph NW
Humidity35%
Visibility—
Dew point33°
Wed, 1153° / 38°0Partly cloudy
53 °Partly cloudy

Dorchester, Wednesday, 11 November

Partly cloudy. High 53°, low 38°.

Pressure30.06 inHg
Wind11.5 mph NW
Humidity36%
Visibility—
Dew point24°
Thu, 1252° / 37°0Overcast
52 °Overcast

Dorchester, Thursday, 12 November

Overcast. High 52°, low 37°.

Pressure30.00 inHg
Wind7 mph E
Humidity35%
Visibility—
Dew point23°
Fri, 1344° / 38°0.01Light rain
44 °Light rain

Dorchester, Friday, 13 November

Light rain. High 44°, low 38°.

Pressure29.97 inHg
Wind9.6 mph E
Humidity72%
Visibility—
Dew point35°
Sat, 1457° / 36°0Mostly clear
57 °Mostly clear

Dorchester, Saturday, 14 November

Mostly clear. High 57°, low 36°.

Pressure30.03 inHg
Wind10.4 mph SW
Humidity54%
Visibility—
Dew point38°
Sun, 1564° / 50°0Overcast
64 °Overcast

Dorchester, Sunday, 15 November

Overcast. High 64°, low 50°.

Pressure29.85 inHg
Wind12.4 mph W
Humidity44%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1644° / 30°0.06Climate normal
44 °Climate normal

Dorchester, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high62° (2023)
Record low14° (1989)
Tue, 1743° / 30°0.09Climate normal
43 °Climate normal

Dorchester, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation25%
Record high67° (2016)
Record low4° (2005)
Wed, 1843° / 29°0.08Climate normal
43 °Climate normal

Dorchester, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation33%
Record high64° (1999)
Record low6° (2014)
Thu, 1942° / 29°0.08Climate normal
42 °Climate normal

Dorchester, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.08 in
Chance of precipitation30%
Record high61° (1975)
Record low8° (1986)
Fri, 2040° / 28°0.09Climate normal
40 °Climate normal

Dorchester, Friday, 20 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation25%
Record high60° (2003)
Record low9° (2022)
Sat, 2139° / 26°0.06Climate normal
39 °Climate normal

Dorchester, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high39°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high66° (1990)
Record low0° (2014)
Sun, 2240° / 27°0.03Climate normal
40 °Climate normal

Dorchester, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2012)
Record low6° (1964)
Mon, 2339° / 27°0.11Climate normal
39 °Climate normal

Dorchester, Monday, 23 November

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.11 in
Chance of precipitation25%
Record high58° (1966)
Record low5° (1985)
Tue, 2438° / 26°0.05Climate normal
38 °Climate normal

Dorchester, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.05 in
Chance of precipitation22%
Record high58° (2017)
Record low-4° (1985)
Wed, 2538° / 26°0.05Climate normal
38 °Climate normal

Dorchester, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.05 in
Chance of precipitation25%
Record high53° (1998)
Record low-1° (1991)
Thu, 2637° / 24°0.07Climate normal
37 °Climate normal

Dorchester, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high37°
Average low24°
Average precipitation0.07 in
Chance of precipitation38%
Record high58° (1990)
Record low-9° (1991)
Fri, 2735° / 23°0.09Climate normal
35 °Climate normal

Dorchester, Friday, 27 November

Climate normal for this date — 60-year average.

Average high35°
Average low23°
Average precipitation0.09 in
Chance of precipitation37%
Record high60° (1990)
Record low-9° (1996)
Sat, 2834° / 22°0.08Climate normal
34 °Climate normal

Dorchester, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high34°
Average low22°
Average precipitation0.08 in
Chance of precipitation22%
Record high60° (1998)
Record low2° (1977)
Sun, 2936° / 23°0.07Climate normal
36 °Climate normal

Dorchester, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high36°
Average low23°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (1998)
Record low-5° (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 Dorchester, IA 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 Dorchester, IA 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.