EN
English Español

As of 16:34 CDT

Weather in Marcus, IA

81°Current weather

Marcus, Saturday, 8 August, 16:34

Overcast. Feels like 81°. High 81°, low 57°.

Pressure29.85 inHg
Wind13.1 mph S
Humidity45%
Visibility6.2 mi
Dew point58°
Sun, 0984° / 69°0.07Light rain
84 °Light rain

Marcus, Sunday, 9 August

Light rain. High 84°, low 69°.

Pressure29.71 inHg
Wind7 mph NW
Humidity36%
Visibility6.2 mi
Dew point62°
Mon, 10104° / 67°0.03Light rain
104 °Light rain

Marcus, Monday, 10 August

Light rain. High 104°, low 67°.

Pressure29.80 inHg
Wind7.7 mph SE
Humidity38%
Visibility6.2 mi
Dew point63°
Tue, 1198° / 67°0.01Light rain
98 °Light rain

Marcus, Tuesday, 11 August

Light rain. High 98°, low 67°.

Pressure29.77 inHg
Wind11.3 mph N
Humidity36%
Visibility6.2 mi
Dew point61°
Wed, 1297° / 66°0.02Light rain
97 °Light rain

Marcus, Wednesday, 12 August

Light rain. High 97°, low 66°.

Pressure29.83 inHg
Wind10.2 mph SE
Humidity32%
Visibility6.2 mi
Dew point58°
Thu, 1387° / 61°0.07Light rain
87 °Light rain

Marcus, Thursday, 13 August

Light rain. High 87°, low 61°.

Pressure29.97 inHg
Wind15.4 mph NE
Humidity28%
Visibility—
Dew point45°
Fri, 1489° / 57°0Clear
89 °Clear

Marcus, Friday, 14 August

Clear. High 89°, low 57°.

Pressure30.15 inHg
Wind12.9 mph S
Humidity22%
Visibility—
Dew point38°
Sat, 1589° / 58°0Overcast
89 °Overcast

Marcus, Saturday, 15 August

Overcast. High 89°, low 58°.

Pressure30.12 inHg
Wind15.1 mph S
Humidity32%
Visibility—
Dew point49°
Sun, 1697° / 67°0.01Light rain
97 °Light rain

Marcus, Sunday, 16 August

Light rain. High 97°, low 67°.

Pressure29.97 inHg
Wind12.9 mph S
Humidity40%
Visibility—
Dew point62°
Mon, 1795° / 69°0.07Light rain
95 °Light rain

Marcus, Monday, 17 August

Light rain. High 95°, low 69°.

Pressure29.97 inHg
Wind14 mph N
Humidity40%
Visibility—
Dew point61°
Tue, 18100° / 68°0Overcast
100 °Overcast

Marcus, Tuesday, 18 August

Overcast. High 100°, low 68°.

Pressure29.94 inHg
Wind11.4 mph W
Humidity32%
Visibility—
Dew point57°
Wed, 1997° / 65°0.02Light rain
97 °Light rain

Marcus, Wednesday, 19 August

Light rain. High 97°, low 65°.

Pressure29.85 inHg
Wind20.3 mph E
Humidity28%
Visibility—
Dew point53°
Thu, 2090° / 62°0.03Light rain
90 °Light rain

Marcus, Thursday, 20 August

Light rain. High 90°, low 62°.

Pressure29.97 inHg
Wind10.4 mph NE
Humidity30%
Visibility—
Dew point48°
Fri, 2193° / 64°0Clear
93 °Clear

Marcus, Friday, 21 August

Clear. High 93°, low 64°.

Pressure29.91 inHg
Wind15.2 mph S
Humidity29%
Visibility—
Dew point51°
Sat, 2279° / 62°0.03Light rain
79 °Light rain

Marcus, Saturday, 22 August

Light rain. High 79°, low 62°.

Pressure30.03 inHg
Wind17.9 mph NE
Humidity57%
Visibility—
Dew point55°
Sun, 2381° / 48°0Clear
81 °Clear

Marcus, Sunday, 23 August

Clear. High 81°, low 48°.

Pressure30.18 inHg
Wind11.4 mph SE
Humidity21%
Visibility—
Dew point30°

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 Marcus, 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 Marcus, 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.