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As of 16:45 CDT

Weather in Mercer, IA

81°Current weather

Mercer, Saturday, 8 August, 16:45

Heavy rain. Feels like 84°. High 81°, low 63°.

Pressure29.91 inHg
Wind12.6 mph SE
Humidity71%
Visibility6.2 mi
Dew point70°
Sun, 0999° / 71°0.02Light rain
99 °Light rain

Mercer, Sunday, 9 August

Light rain. High 99°, low 71°.

Pressure29.74 inHg
Wind16.4 mph SW
Humidity49%
Visibility6.2 mi
Dew point68°
Mon, 1093° / 69°0.18Rain
93 °Rain

Mercer, Monday, 10 August

Rain. High 93°, low 69°.

Pressure29.83 inHg
Wind6.3 mph S
Humidity55%
Visibility6.2 mi
Dew point67°
Tue, 1191° / 69°0Partly cloudy
91 °Partly cloudy

Mercer, Tuesday, 11 August

Partly cloudy. High 91°, low 69°.

Pressure29.74 inHg
Wind10.9 mph W
Humidity48%
Visibility6.2 mi
Dew point68°
Wed, 1288° / 70°0.14Light rain
88 °Light rain

Mercer, Wednesday, 12 August

Light rain. High 88°, low 70°.

Pressure29.83 inHg
Wind11.1 mph E
Humidity69%
Visibility6.2 mi
Dew point73°
Thu, 1375° / 66°0.94Heavy rain
75 °Heavy rain

Mercer, Thursday, 13 August

Heavy rain. High 75°, low 66°.

Pressure29.91 inHg
Wind12.5 mph NE
Humidity96%
Visibility—
Dew point68°
Fri, 1476° / 58°0Overcast
76 °Overcast

Mercer, Friday, 14 August

Overcast. High 76°, low 58°.

Pressure30.18 inHg
Wind8.9 mph E
Humidity59%
Visibility—
Dew point57°
Sat, 1576° / 58°0Overcast
76 °Overcast

Mercer, Saturday, 15 August

Overcast. High 76°, low 58°.

Pressure30.18 inHg
Wind14.7 mph SE
Humidity64%
Visibility—
Dew point60°
Sun, 1683° / 65°0.1Light rain
83 °Light rain

Mercer, Sunday, 16 August

Light rain. High 83°, low 65°.

Pressure30.03 inHg
Wind11.4 mph SE
Humidity85%
Visibility—
Dew point70°
Mon, 1789° / 67°1Heavy rain
89 °Heavy rain

Mercer, Monday, 17 August

Heavy rain. High 89°, low 67°.

Pressure29.97 inHg
Wind14.8 mph E
Humidity66%
Visibility—
Dew point71°
Tue, 1884° / 66°0.1Light rain
84 °Light rain

Mercer, Tuesday, 18 August

Light rain. High 84°, low 66°.

Pressure30.00 inHg
Wind6.9 mph NE
Humidity76%
Visibility—
Dew point71°
Wed, 1988° / 68°0.02Light rain
88 °Light rain

Mercer, Wednesday, 19 August

Light rain. High 88°, low 68°.

Pressure29.88 inHg
Wind14.5 mph NE
Humidity63%
Visibility—
Dew point70°
Thu, 2080° / 64°0.03Light rain
80 °Light rain

Mercer, Thursday, 20 August

Light rain. High 80°, low 64°.

Pressure29.97 inHg
Wind14.5 mph NE
Humidity64%
Visibility—
Dew point63°
Fri, 2181° / 63°0Overcast
81 °Overcast

Mercer, Friday, 21 August

Overcast. High 81°, low 63°.

Pressure29.97 inHg
Wind7 mph E
Humidity55%
Visibility—
Dew point60°
Sat, 2285° / 63°0.09Light rain
85 °Light rain

Mercer, Saturday, 22 August

Light rain. High 85°, low 63°.

Pressure29.91 inHg
Wind17.3 mph NE
Humidity55%
Visibility—
Dew point64°
Sun, 2371° / 57°0Overcast
71 °Overcast

Mercer, Sunday, 23 August

Overcast. High 71°, low 57°.

Pressure30.18 inHg
Wind13.2 mph E
Humidity56%
Visibility—
Dew point49°

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 Mercer, 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 Mercer, 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.