As of 04:44 CST

Weather in Merrimac, IA

31°

Merrimac, Saturday, 7 November, 04:44

Overcast. Feels like 28°. High 53°, low 31°.

Pressure30.21 inHg

Wind3.3 mph W

Humidity97%

Visibility6.2 mi

Dew point31°

See detailed hourly forecast

Monthly outlook for Merrimac, IA: average high 56°, average low 39.5°. That is 3.6° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 9 November (63.8°), the coolest 14 November (28.8°).

56°/39.5°

Average high / low

+3.6°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 November – 16 November	56.2°	50.4°	+3.2°
17 November – 26 November	55.6°	46.9°	+4.8°
27 November – 6 December	at normal	40.4°	—

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).

Sun, 0862° / 38°

62 °

Merrimac, Sunday, 8 November

Clear. High 62°, low 38°.

Pressure30.09 inHg

Wind8.1 mph W

Humidity53%

Visibility6.2 mi

Dew point43°

Mon, 0964° / 36°

64 °

Merrimac, Monday, 9 November

Clear. High 64°, low 36°.

Pressure30.12 inHg

Wind8.3 mph S

Humidity47%

Visibility6.2 mi

Dew point41°

Tue, 1063° / 44°

63 °

Merrimac, Tuesday, 10 November

Clear. High 63°, low 44°.

Pressure30.09 inHg

Wind0.7 mph NW

Humidity56%

Visibility6.2 mi

Dew point45°

Wed, 1159° / 44°

0.01

59 °

Merrimac, Wednesday, 11 November

Light rain. High 59°, low 44°.

Pressure29.83 inHg

Wind12.4 mph NW

Humidity77%

Visibility—

Dew point49°

Thu, 1250° / 39°

50 °

Merrimac, Thursday, 12 November

Partly cloudy. High 50°, low 39°.

Pressure30.03 inHg

Wind16.8 mph N

Humidity54%

Visibility—

Dew point31°

Fri, 1340° / 29°

40 °

Merrimac, Friday, 13 November

Clear. High 40°, low 29°.

Pressure30.18 inHg

Wind13.9 mph N

Humidity48%

Visibility—

Dew point20°

Sat, 1448° / 29°

48 °

Merrimac, Saturday, 14 November

Mostly clear. High 48°, low 29°.

Pressure30.12 inHg

Wind9 mph SW

Humidity37%

Visibility—

Dew point19°

Sun, 1560° / 38°

60 °

Merrimac, Sunday, 15 November

Clear. High 60°, low 38°.

Pressure30.03 inHg

Wind7.4 mph SW

Humidity63%

Visibility—

Dew point42°

Mon, 1662° / 48°

62 °

Merrimac, Monday, 16 November

Overcast. High 62°, low 48°.

Pressure30.06 inHg

Wind12.6 mph S

Humidity66%

Visibility—

Dew point49°

Tue, 1757° / 50°

0.01

57 °

Merrimac, Tuesday, 17 November

Light rain. High 57°, low 50°.

Pressure30.09 inHg

Wind10.9 mph SW

Humidity78%

Visibility—

Dew point49°

Wed, 1858° / 47°

58 °

Merrimac, Wednesday, 18 November

Overcast. High 58°, low 47°.

Pressure30.06 inHg

Wind11.5 mph N

Humidity51%

Visibility—

Dew point40°

Thu, 1955° / 41°

55 °

Merrimac, Thursday, 19 November

Overcast. High 55°, low 41°.

Pressure30.36 inHg

Wind7.4 mph E

Humidity56%

Visibility—

Dew point36°

Fri, 2054° / 43°

54 °

Merrimac, Friday, 20 November

Overcast. High 54°, low 43°.

Pressure30.30 inHg

Wind9.3 mph SW

Humidity56%

Visibility—

Dew point37°

Sat, 2153° / 39°

53 °

Merrimac, Saturday, 21 November

Partly cloudy. High 53°, low 39°.

Pressure30.50 inHg

Wind8.2 mph SW

Humidity42%

Visibility—

Dew point28°

Sun, 2256° / 37°

56 °

Merrimac, Sunday, 22 November

Clear. High 56°, low 37°.

Pressure30.36 inHg

Wind11.3 mph W

Humidity37%

Visibility—

Dew point26°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2346° / 31°

0.08

46 °

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°

0.06

45 °

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°

0.06

45 °

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°

0.11

45 °

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°

0.13

42 °

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°

0.07

40 °

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°

0.08

42 °

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°

0.07

42 °

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°

0.09

40 °

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°

0.05

41 °

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°

0.07

40 °

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)

Fri, 0439° / 25°

0.04

39 °

Merrimac, Friday, 4 December

Climate normal for this date — 60-year average.

Average high39°

Average low25°

Average precipitation0.04 in

Chance of precipitation17%

Record high68° (1998)

Record low-2° (2025)

Sat, 0540° / 25°

0.06

40 °

Merrimac, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high40°

Average low25°

Average precipitation0.06 in

Chance of precipitation23%

Record high68° (2001)

Record low1° (1964)

Sun, 0637° / 23°

0.06

37 °

Merrimac, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high37°

Average low23°

Average precipitation0.06 in

Chance of precipitation23%

Record high58° (1966)

Record low-3° (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.