As of 05:51 CST

Weather in Merrimac, IA

27°Current weather

Merrimac, Saturday, 14 November, 05:51

Clear. Feels like 27°. High 46°, low 26°.

Pressure30.27 inHg
Wind2.1 mph N
Humidity93%
Visibility6.2 mi
Dew point26°

Monthly outlook for Merrimac, IA: average high 47.7°, average low 33.3°. That is 0.7° above the climate normal for November. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 21 November (62.9°), the coolest 27 November (25.4°).

47.7°/33.3°
Average high / low
+0.7°
Above normal
5 / 4
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 November – 23 November52.2°48.3°+2.2°
24 November – 3 December40.2°42.3°-1.2°
4 December – 13 Decemberat normal37°—

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, 1548° / 28°0Clear
48 °Clear

Merrimac, Sunday, 15 November

Clear. High 48°, low 28°.

Pressure30.47 inHg
Wind3.1 mph S
Humidity56%
Visibility6.2 mi
Dew point28°
Mon, 1653° / 29°0Clear
53 °Clear

Merrimac, Monday, 16 November

Clear. High 53°, low 29°.

Pressure30.50 inHg
Wind7.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point34°
Tue, 1756° / 34°0Mostly clear
56 °Mostly clear

Merrimac, Tuesday, 17 November

Mostly clear. High 56°, low 34°.

Pressure30.42 inHg
Wind9.4 mph S
Humidity54%
Visibility6.2 mi
Dew point38°
Wed, 1858° / 40°0Overcast
58 °Overcast

Merrimac, Wednesday, 18 November

Overcast. High 58°, low 40°.

Pressure30.24 inHg
Wind14 mph S
Humidity53%
Visibility—
Dew point36°
Thu, 1962° / 48°0.22Rain
62 °Rain

Merrimac, Thursday, 19 November

Rain. High 62°, low 48°.

Pressure30.15 inHg
Wind13.7 mph S
Humidity78%
Visibility—
Dew point51°
Fri, 2053° / 40°0.09Light rain
53 °Light rain

Merrimac, Friday, 20 November

Light rain. High 53°, low 40°.

Pressure30.27 inHg
Wind13.5 mph SE
Humidity54%
Visibility—
Dew point34°
Sat, 2163° / 45°0.22Rain
63 °Rain

Merrimac, Saturday, 21 November

Rain. High 63°, low 45°.

Pressure29.85 inHg
Wind22.4 mph SW
Humidity61%
Visibility—
Dew point48°
Sun, 2244° / 37°0Overcast
44 °Overcast

Merrimac, Sunday, 22 November

Overcast. High 44°, low 37°.

Pressure30.12 inHg
Wind19.5 mph W
Humidity57%
Visibility—
Dew point27°
Mon, 2340° / 32°0Clear
40 °Clear

Merrimac, Monday, 23 November

Clear. High 40°, low 32°.

Pressure30.21 inHg
Wind16.7 mph NW
Humidity49%
Visibility—
Dew point20°
Tue, 2444° / 28°0Mostly clear
44 °Mostly clear

Merrimac, Tuesday, 24 November

Mostly clear. High 44°, low 28°.

Pressure30.27 inHg
Wind6.5 mph S
Humidity51%
Visibility—
Dew point23°
Wed, 2541° / 30°0.05Light rain
41 °Light rain

Merrimac, Wednesday, 25 November

Light rain. High 41°, low 30°.

Pressure30.27 inHg
Wind13.3 mph NW
Humidity61%
Visibility—
Dew point26°
Thu, 2638° / 26°0Clear
38 °Clear

Merrimac, Thursday, 26 November

Clear. High 38°, low 26°.

Pressure30.53 inHg
Wind9.9 mph N
Humidity47%
Visibility—
Dew point17°
Fri, 2739° / 25°0Overcast
39 °Overcast

Merrimac, Friday, 27 November

Overcast. High 39°, low 25°.

Pressure30.27 inHg
Wind7.8 mph NE
Humidity46%
Visibility—
Dew point17°
Sat, 2840° / 30°0.01Light snow
40 °Light snow

Merrimac, Saturday, 28 November

Light snow. High 40°, low 30°.

Pressure30.00 inHg
Wind8.4 mph NE
Humidity55%
Visibility—
Dew point23°
Sun, 2940° / 34°0.11Snow
40 °Snow

Merrimac, Sunday, 29 November

Snow. High 40°, low 34°.

Pressure30.09 inHg
Wind6 mph N
Humidity70%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 0439° / 25°0.04Climate normal
39 °Climate normal

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°0.06Climate normal
40 °Climate normal

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°0.06Climate normal
37 °Climate normal

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)
Mon, 0736° / 22°0.06Climate normal
36 °Climate normal

Merrimac, Monday, 7 December

Climate normal for this date — 60-year average.

Average high36°
Average low22°
Average precipitation0.06 in
Chance of precipitation22%
Record high58° (2023)
Record low-11° (2005)
Tue, 0837° / 23°0.06Climate normal
37 °Climate normal

Merrimac, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°
Average low23°
Average precipitation0.06 in
Chance of precipitation23%
Record high63° (1991)
Record low1° (1976)
Wed, 0937° / 22°0.08Climate normal
37 °Climate normal

Merrimac, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high37°
Average low22°
Average precipitation0.08 in
Chance of precipitation30%
Record high55° (1993)
Record low-8° (1977)
Thu, 1036° / 22°0.08Climate normal
36 °Climate normal

Merrimac, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high36°
Average low22°
Average precipitation0.08 in
Chance of precipitation22%
Record high57° (2015)
Record low-13° (1977)
Fri, 1136° / 21°0.08Climate normal
36 °Climate normal

Merrimac, Friday, 11 December

Climate normal for this date — 60-year average.

Average high36°
Average low21°
Average precipitation0.08 in
Chance of precipitation25%
Record high60° (1965)
Record low-12° (1972)
Sat, 1237° / 22°0.05Climate normal
37 °Climate normal

Merrimac, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high37°
Average low22°
Average precipitation0.05 in
Chance of precipitation17%
Record high60° (1991)
Record low-18° (2000)
Sun, 1337° / 22°0.07Climate normal
37 °Climate normal

Merrimac, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high37°
Average low22°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (2015)
Record low-21° (2000)

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.