As of 13:48 CDT

Weather in Dorchester, IA

67°Current weather

Dorchester, Sunday, 25 October, 13:48

Overcast. Feels like 66°. High 67°, low 52°.

Pressure30.33 inHg
Wind4.7 mph N
Humidity61%
Visibility6.2 mi
Dew point53°

Monthly outlook for Dorchester, IA: average high 59.6°, average low 47.8°. That is 5.4° above the climate normal for October. Precipitation is expected on 7 days (about 1.7 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 28 October (69.7°), the coolest 9 November (36.9°).

59.6°/47.8°
Average high / low
+5.4°
Above normal
7 / 4
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November64.8°51.4°+7.4°
4 November – 13 November51°45.5°+3.1°
14 November – 23 Novemberat normal41.5°—

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).

Mon, 2664° / 53°0Light rain
64 °Light rain

Dorchester, Monday, 26 October

Light rain. High 64°, low 53°.

Pressure30.39 inHg
Wind8.7 mph NE
Humidity45%
Visibility6.2 mi
Dew point36°
Tue, 2765° / 48°0.01Light rain
65 °Light rain

Dorchester, Tuesday, 27 October

Light rain. High 65°, low 48°.

Pressure30.18 inHg
Wind11.4 mph SE
Humidity69%
Visibility6.2 mi
Dew point50°
Wed, 2870° / 58°0.21Rain
70 °Rain

Dorchester, Wednesday, 28 October

Rain. High 70°, low 58°.

Pressure30.06 inHg
Wind11 mph S
Humidity63%
Visibility6.2 mi
Dew point53°
Thu, 2966° / 50°0.33Rain
66 °Rain

Dorchester, Thursday, 29 October

Rain. High 66°, low 50°.

Pressure30.09 inHg
Wind6.9 mph N
Humidity90%
Visibility6.2 mi
Dew point58°
Fri, 3063° / 43°0.01Light rain
63 °Light rain

Dorchester, Friday, 30 October

Light rain. High 63°, low 43°.

Pressure30.24 inHg
Wind6 mph SE
Humidity51%
Visibility—
Dew point41°
Sat, 3161° / 55°0.36Rain
61 °Rain

Dorchester, Saturday, 31 October

Rain. High 61°, low 55°.

Pressure30.06 inHg
Wind9.2 mph SE
Humidity95%
Visibility—
Dew point59°
Sun, 0164° / 57°0.15Light rain
64 °Light rain

Dorchester, Sunday, 1 November

Light rain. High 64°, low 57°.

Pressure30.06 inHg
Wind3.4 mph S
Humidity87%
Visibility—
Dew point56°
Mon, 0265° / 54°0.06Light rain
65 °Light rain

Dorchester, Monday, 2 November

Light rain. High 65°, low 54°.

Pressure29.85 inHg
Wind19.1 mph S
Humidity75%
Visibility—
Dew point54°
Tue, 0364° / 51°0.04Light rain
64 °Light rain

Dorchester, Tuesday, 3 November

Light rain. High 64°, low 51°.

Pressure29.77 inHg
Wind16.5 mph W
Humidity67%
Visibility—
Dew point45°
Wed, 0449° / 46°0Overcast
49 °Overcast

Dorchester, Wednesday, 4 November

Overcast. High 49°, low 46°.

Pressure29.77 inHg
Wind18.2 mph W
Humidity69%
Visibility—
Dew point38°
Thu, 0552° / 41°0Overcast
52 °Overcast

Dorchester, Thursday, 5 November

Overcast. High 52°, low 41°.

Pressure29.80 inHg
Wind13.5 mph NW
Humidity62%
Visibility—
Dew point37°
Fri, 0653° / 38°0Partly cloudy
53 °Partly cloudy

Dorchester, Friday, 6 November

Partly cloudy. High 53°, low 38°.

Pressure29.83 inHg
Wind11.2 mph NW
Humidity61%
Visibility—
Dew point35°
Sat, 0756° / 41°0.01Light rain
56 °Light rain

Dorchester, Saturday, 7 November

Light rain. High 56°, low 41°.

Pressure29.65 inHg
Wind15.8 mph E
Humidity54%
Visibility—
Dew point38°
Sun, 0847° / 42°0.46Light rain
47 °Light rain

Dorchester, Sunday, 8 November

Light rain. High 47°, low 42°.

Pressure29.47 inHg
Wind18.6 mph N
Humidity94%
Visibility—
Dew point44°
Mon, 0950° / 37°0.01Light rain
50 °Light rain

Dorchester, Monday, 9 November

Light rain. High 50°, low 37°.

Pressure30.03 inHg
Wind14.5 mph NW
Humidity64%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1044° / 32°0.12Climate normal
44 °Climate normal

Dorchester, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.12 in
Chance of precipitation30%
Record high68° (2012)
Record low11° (2018)
Wed, 1143° / 30°0.07Climate normal
43 °Climate normal

Dorchester, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (1964)
Record low11° (1986)
Thu, 1241° / 29°0.06Climate normal
41 °Climate normal

Dorchester, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation30%
Record high61° (1964)
Record low1° (2019)
Fri, 1342° / 29°0.06Climate normal
42 °Climate normal

Dorchester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (1999)
Record low3° (1986)
Sat, 1443° / 30°0.03Climate normal
43 °Climate normal

Dorchester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.03 in
Chance of precipitation22%
Record high64° (2025)
Record low15° (1986)
Sun, 1543° / 31°0.06Climate normal
43 °Climate normal

Dorchester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation28%
Record high66° (2001)
Record low15° (2014)
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)

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.