As of 12:51 CST

Weather in Merrimac, IA

53°Current weather

Merrimac, Wednesday, 4 November, 12:51

Overcast. Feels like 52°. High 58°, low 50°.

Pressure29.71 inHg
Wind14.6 mph W
Humidity77%
Visibility6.2 mi
Dew point46°

Monthly outlook for Merrimac, IA: average high 57.8°, average low 42.8°. That is 3.8° above the climate normal for November. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 9 November (65.2°), the coolest 7 November (32.5°).

57.8°/42.8°
Average high / low
+3.8°
Above normal
1 / 4
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
4 November – 13 November56.2°51.7°+2.5°
14 November – 23 November60.5°48.3°+6.8°
24 November – 3 Decemberat normal42.3°—

November records over 66 years

77.2°8 November 1999All-time high
-7.2°8 November 1991All-time low

Climate normals and records are computed from the nearest reference point — Fairfield (14 mi).

Thu, 0555° / 47°0Overcast
55 °Overcast

Merrimac, Thursday, 5 November

Overcast. High 55°, low 47°.

Pressure29.83 inHg
Wind11.2 mph NW
Humidity69%
Visibility6.2 mi
Dew point45°
Fri, 0649° / 36°0Mostly clear
49 °Mostly clear

Merrimac, Friday, 6 November

Mostly clear. High 49°, low 36°.

Pressure30.24 inHg
Wind7.2 mph N
Humidity53%
Visibility6.2 mi
Dew point29°
Sat, 0751° / 33°0Overcast
51 °Overcast

Merrimac, Saturday, 7 November

Overcast. High 51°, low 33°.

Pressure30.30 inHg
Wind3.2 mph W
Humidity51%
Visibility6.2 mi
Dew point31°
Sun, 0862° / 40°0Clear
62 °Clear

Merrimac, Sunday, 8 November

Clear. High 62°, low 40°.

Pressure30.15 inHg
Wind7.2 mph W
Humidity61%
Visibility6.2 mi
Dew point46°
Mon, 0965° / 37°0Clear
65 °Clear

Merrimac, Monday, 9 November

Clear. High 65°, low 37°.

Pressure30.15 inHg
Wind8.7 mph SW
Humidity59%
Visibility—
Dew point44°
Tue, 1058° / 45°0Mostly clear
58 °Mostly clear

Merrimac, Tuesday, 10 November

Mostly clear. High 58°, low 45°.

Pressure30.12 inHg
Wind10.5 mph N
Humidity37%
Visibility—
Dew point30°
Wed, 1153° / 41°0Overcast
53 °Overcast

Merrimac, Wednesday, 11 November

Overcast. High 53°, low 41°.

Pressure30.27 inHg
Wind6.3 mph NE
Humidity48%
Visibility—
Dew point32°
Thu, 1254° / 41°0Partly cloudy
54 °Partly cloudy

Merrimac, Thursday, 12 November

Partly cloudy. High 54°, low 41°.

Pressure30.27 inHg
Wind5.7 mph E
Humidity55%
Visibility—
Dew point35°
Fri, 1356° / 38°0Clear
56 °Clear

Merrimac, Friday, 13 November

Clear. High 56°, low 38°.

Pressure30.18 inHg
Wind9 mph W
Humidity47%
Visibility—
Dew point32°
Sat, 1464° / 43°0Clear
64 °Clear

Merrimac, Saturday, 14 November

Clear. High 64°, low 43°.

Pressure30.12 inHg
Wind10.8 mph W
Humidity55%
Visibility—
Dew point42°
Sun, 1563° / 49°0Overcast
63 °Overcast

Merrimac, Sunday, 15 November

Overcast. High 63°, low 49°.

Pressure30.12 inHg
Wind7.2 mph SW
Humidity60%
Visibility—
Dew point46°
Mon, 1662° / 50°0Overcast
62 °Overcast

Merrimac, Monday, 16 November

Overcast. High 62°, low 50°.

Pressure30.18 inHg
Wind4.9 mph S
Humidity69%
Visibility—
Dew point49°
Tue, 1764° / 48°0Mostly clear
64 °Mostly clear

Merrimac, Tuesday, 17 November

Mostly clear. High 64°, low 48°.

Pressure30.15 inHg
Wind14 mph S
Humidity50%
Visibility—
Dew point42°
Wed, 1859° / 46°0.35Rain
59 °Rain

Merrimac, Wednesday, 18 November

Rain. High 59°, low 46°.

Pressure29.97 inHg
Wind11.8 mph S
Humidity64%
Visibility—
Dew point45°
Thu, 1951° / 41°0Overcast
51 °Overcast

Merrimac, Thursday, 19 November

Overcast. High 51°, low 41°.

Pressure30.00 inHg
Wind14.8 mph N
Humidity57%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2047° / 33°0.1Climate normal
47 °Climate normal

Merrimac, Friday, 20 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation30%
Record high66° (2003)
Record low15° (1964)
Sat, 2146° / 31°0.06Climate normal
46 °Climate normal

Merrimac, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1990)
Record low8° (1964)
Sun, 2246° / 31°0.04Climate normal
46 °Climate normal

Merrimac, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high67° (1966)
Record low9° (2015)
Mon, 2346° / 31°0.08Climate normal
46 °Climate normal

Merrimac, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.08 in
Chance of precipitation25%
Record high68° (1966)
Record low11° (1970)
Tue, 2445° / 30°0.06Climate normal
45 °Climate normal

Merrimac, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.06 in
Chance of precipitation17%
Record high65° (1966)
Record low9° (1985)
Wed, 2545° / 30°0.06Climate normal
45 °Climate normal

Merrimac, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.06 in
Chance of precipitation22%
Record high60° (2006)
Record low2° (1991)
Thu, 2645° / 30°0.11Climate normal
45 °Climate normal

Merrimac, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (1965)
Record low4° (1977)
Fri, 2742° / 29°0.13Climate normal
42 °Climate normal

Merrimac, Friday, 27 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation43%
Record high68° (1990)
Record low8° (2018)
Sat, 2840° / 26°0.07Climate normal
40 °Climate normal

Merrimac, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation18%
Record high67° (1998)
Record low5° (2018)
Sun, 2942° / 28°0.08Climate normal
42 °Climate normal

Merrimac, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.08 in
Chance of precipitation27%
Record high70° (1998)
Record low5° (1976)
Mon, 3042° / 27°0.07Climate normal
42 °Climate normal

Merrimac, Monday, 30 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (1998)
Record low4° (1964)
Tue, 0140° / 27°0.09Climate normal
40 °Climate normal

Merrimac, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation37%
Record high62° (1970)
Record low2° (1971)
Wed, 0241° / 27°0.05Climate normal
41 °Climate normal

Merrimac, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high41°
Average low27°
Average precipitation0.05 in
Chance of precipitation22%
Record high65° (1982)
Record low-5° (1985)
Thu, 0340° / 26°0.07Climate normal
40 °Climate normal

Merrimac, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation22%
Record high69° (2012)
Record low-10° (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 Merrimac, 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 Merrimac, 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.