As of 22:56 CDT

Weather in Williamstown, IA

56°Current weather

Williamstown, Thursday, 22 October, 22:56

Clear. Feels like 56°. High 76°, low 47°.

Pressure30.21 inHg
Wind8.3 mph S
Humidity88%
Visibility6.2 mi
Dew point53°

Monthly outlook for Williamstown, IA: average high 61.5°, average low 47.5°. That is 4.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 22 October (76°), the coolest 5 November (36.6°).

61.5°/47.5°
Average high / low
+4.6°
Above normal
1 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October65.5°54.9°+5.9°
1 November – 10 November54.8°49.5°+2.9°
11 November – 20 Novemberat normal44.3°—

October records over 66 years

87.1°1 October 2023All-time high
19.9°19 October 1972All-time low

Climate normals and records are computed from the nearest reference point — Frederika (6 mi).

Fri, 2373° / 51°0.02Light rain
73 °Light rain

Williamstown, Friday, 23 October

Light rain. High 73°, low 51°.

Pressure30.21 inHg
Wind9.6 mph S
Humidity56%
Visibility6.2 mi
Dew point51°
Sat, 2472° / 53°0Overcast
72 °Overcast

Williamstown, Saturday, 24 October

Overcast. High 72°, low 53°.

Pressure30.21 inHg
Wind12.6 mph S
Humidity57%
Visibility6.2 mi
Dew point51°
Sun, 2567° / 55°0Overcast
67 °Overcast

Williamstown, Sunday, 25 October

Overcast. High 67°, low 55°.

Pressure30.36 inHg
Wind5.9 mph NE
Humidity69%
Visibility6.2 mi
Dew point54°
Mon, 2661° / 52°0Overcast
61 °Overcast

Williamstown, Monday, 26 October

Overcast. High 61°, low 52°.

Pressure30.39 inHg
Wind10.3 mph E
Humidity60%
Visibility6.2 mi
Dew point44°
Tue, 2765° / 50°0Partly cloudy
65 °Partly cloudy

Williamstown, Tuesday, 27 October

Partly cloudy. High 65°, low 50°.

Pressure30.24 inHg
Wind11.7 mph SE
Humidity66%
Visibility—
Dew point49°
Wed, 2866° / 53°0.02Light rain
66 °Light rain

Williamstown, Wednesday, 28 October

Light rain. High 66°, low 53°.

Pressure29.94 inHg
Wind16.8 mph S
Humidity56%
Visibility—
Dew point48°
Thu, 2960° / 49°0.01Light rain
60 °Light rain

Williamstown, Thursday, 29 October

Light rain. High 60°, low 49°.

Pressure30.15 inHg
Wind10.5 mph SW
Humidity63%
Visibility—
Dew point42°
Fri, 3058° / 42°0Overcast
58 °Overcast

Williamstown, Friday, 30 October

Overcast. High 58°, low 42°.

Pressure30.15 inHg
Wind11.6 mph E
Humidity63%
Visibility—
Dew point41°
Sat, 3157° / 53°0.77Rain
57 °Rain

Williamstown, Saturday, 31 October

Rain. High 57°, low 53°.

Pressure29.77 inHg
Wind18.8 mph S
Humidity95%
Visibility—
Dew point54°
Sun, 0157° / 46°0.02Light rain
57 °Light rain

Williamstown, Sunday, 1 November

Light rain. High 57°, low 46°.

Pressure30.03 inHg
Wind11.3 mph NW
Humidity50%
Visibility—
Dew point36°
Mon, 0258° / 45°0Overcast
58 °Overcast

Williamstown, Monday, 2 November

Overcast. High 58°, low 45°.

Pressure30.15 inHg
Wind6.9 mph NW
Humidity47%
Visibility—
Dew point35°
Tue, 0349° / 42°0.01Light rain
49 °Light rain

Williamstown, Tuesday, 3 November

Light rain. High 49°, low 42°.

Pressure30.33 inHg
Wind10.7 mph NW
Humidity75%
Visibility—
Dew point38°
Wed, 0450° / 41°0Overcast
50 °Overcast

Williamstown, Wednesday, 4 November

Overcast. High 50°, low 41°.

Pressure30.12 inHg
Wind13.3 mph NW
Humidity51%
Visibility—
Dew point31°
Thu, 0555° / 37°0Overcast
55 °Overcast

Williamstown, Thursday, 5 November

Overcast. High 55°, low 37°.

Pressure30.00 inHg
Wind14.5 mph W
Humidity43%
Visibility—
Dew point29°
Fri, 0659° / 45°0Clear
59 °Clear

Williamstown, Friday, 6 November

Clear. High 59°, low 45°.

Pressure29.91 inHg
Wind11.6 mph NW
Humidity56%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 33°0.02Climate normal
49 °Climate normal

Williamstown, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation8%
Record high71° (2001)
Record low-6° (1991)
Sun, 0849° / 33°0.03Climate normal
49 °Climate normal

Williamstown, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation22%
Record high76° (1999)
Record low2° (1991)
Mon, 0948° / 34°0.11Climate normal
48 °Climate normal

Williamstown, Monday, 9 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (1999)
Record low17° (1991)
Tue, 1046° / 32°0.1Climate normal
46 °Climate normal

Williamstown, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (2012)
Record low10° (2018)
Wed, 1145° / 30°0.09Climate normal
45 °Climate normal

Williamstown, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.09 in
Chance of precipitation25%
Record high69° (1964)
Record low8° (1986)
Thu, 1243° / 29°0.06Climate normal
43 °Climate normal

Williamstown, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high65° (2005)
Record low4° (2019)
Fri, 1344° / 29°0.06Climate normal
44 °Climate normal

Williamstown, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (1999)
Record low3° (1986)
Sat, 1445° / 30°0.02Climate normal
45 °Climate normal

Williamstown, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.02 in
Chance of precipitation20%
Record high67° (2001)
Record low14° (1986)
Sun, 1545° / 31°0.07Climate normal
45 °Climate normal

Williamstown, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (2001)
Record low15° (2014)
Mon, 1646° / 30°0.06Climate normal
46 °Climate normal

Williamstown, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (1971)
Record low11° (1997)
Tue, 1745° / 31°0.09Climate normal
45 °Climate normal

Williamstown, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation22%
Record high69° (2016)
Record low9° (2005)
Wed, 1845° / 30°0.08Climate normal
45 °Climate normal

Williamstown, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.08 in
Chance of precipitation27%
Record high69° (1999)
Record low7° (2014)
Thu, 1944° / 30°0.08Climate normal
44 °Climate normal

Williamstown, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation30%
Record high64° (1999)
Record low6° (1986)
Fri, 2042° / 28°0.1Climate normal
42 °Climate normal

Williamstown, Friday, 20 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.1 in
Chance of precipitation37%
Record high64° (2003)
Record low10° (1964)

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 Williamstown, 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 Williamstown, 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.