As of 00:09 CDT

Weather in Seymour, IA

72°

Seymour, Sunday, 9 August, 00:09

Overcast. Feels like 73°. High 92°, low 72°.

Pressure29.94 inHg

Wind5.8 mph S

Humidity89%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

Monthly outlook for Seymour, IA: average high 81°, average low 65.2°. That is 0.9° below the climate normal for August. Precipitation is expected on 6 days (about 2.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 11 August (96.2°), the coolest 21 August (51.9°).

81°/65.2°

Average high / low

−0.9°

Below normal

6 / 5

Wet days / normal

2.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	82.8°	82.6°	+0.1°
19 August – 28 August	77.9°	82.5°	-2.5°
29 August – 7 September	at normal	80.3°	—

August records over 66 years

101.8°15 August 1988All-time high

46.6°28 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Centerville (13 mi).

Mon, 1090° / 75°

90 °

Seymour, Monday, 10 August

Overcast. High 90°, low 75°.

Pressure29.85 inHg

Wind10.5 mph SW

Humidity58%

Visibility6.2 mi

Dew point70°

Tue, 1196° / 76°

0.17

96 °

Seymour, Tuesday, 11 August

Heavy rain. High 96°, low 76°.

Pressure29.77 inHg

Wind14.3 mph SW

Humidity48%

Visibility6.2 mi

Dew point68°

Wed, 1287° / 67°

0.23

87 °

Seymour, Wednesday, 12 August

Rain. High 87°, low 67°.

Pressure29.88 inHg

Wind10 mph E

Humidity75%

Visibility6.2 mi

Dew point71°

Thu, 1374° / 66°

2.05

74 °

Seymour, Thursday, 13 August

Heavy rain. High 74°, low 66°.

Pressure29.88 inHg

Wind16.7 mph E

Humidity98%

Visibility—

Dew point69°

Fri, 1477° / 62°

0.05

77 °

Seymour, Friday, 14 August

Light rain. High 77°, low 62°.

Pressure30.06 inHg

Wind14.6 mph E

Humidity68%

Visibility—

Dew point63°

Sat, 1567° / 65°

0.21

67 °

Seymour, Saturday, 15 August

Light rain. High 67°, low 65°.

Pressure30.15 inHg

Wind14.7 mph E

Humidity96%

Visibility—

Dew point65°

Sun, 1677° / 63°

0.01

77 °

Seymour, Sunday, 16 August

Light rain. High 77°, low 63°.

Pressure30.09 inHg

Wind7.8 mph E

Humidity78%

Visibility—

Dew point66°

Mon, 1782° / 68°

0.05

82 °

Seymour, Monday, 17 August

Light rain. High 82°, low 68°.

Pressure30.06 inHg

Wind5.5 mph S

Humidity68%

Visibility—

Dew point67°

Tue, 1886° / 68°

86 °

Seymour, Tuesday, 18 August

Overcast. High 86°, low 68°.

Pressure29.97 inHg

Wind11.4 mph S

Humidity70%

Visibility—

Dew point70°

Wed, 1976° / 64°

0.01

76 °

Seymour, Wednesday, 19 August

Light rain. High 76°, low 64°.

Pressure30.00 inHg

Wind14.2 mph N

Humidity65%

Visibility—

Dew point59°

Thu, 2072° / 54°

72 °

Seymour, Thursday, 20 August

Overcast. High 72°, low 54°.

Pressure30.06 inHg

Wind15.3 mph NE

Humidity52%

Visibility—

Dew point51°

Fri, 2166° / 52°

66 °

Seymour, Friday, 21 August

Overcast. High 66°, low 52°.

Pressure30.06 inHg

Wind13 mph E

Humidity65%

Visibility—

Dew point52°

Sat, 2283° / 59°

83 °

Seymour, Saturday, 22 August

Overcast. High 83°, low 59°.

Pressure29.85 inHg

Wind10.3 mph W

Humidity68%

Visibility—

Dew point64°

Sun, 2386° / 65°

86 °

Seymour, Sunday, 23 August

Partly cloudy. High 86°, low 65°.

Pressure29.94 inHg

Wind9.7 mph SW

Humidity57%

Visibility—

Dew point64°

Mon, 2484° / 68°

0.01

84 °

Seymour, Monday, 24 August

Light rain. High 84°, low 68°.

Pressure29.91 inHg

Wind9.8 mph S

Humidity63%

Visibility—

Dew point68°

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

Tue, 2583° / 66°

0.13

83 °

Seymour, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high83°

Average low66°

Average precipitation0.13 in

Chance of precipitation35%

Record high101° (2003)

Record low52° (1966)

Wed, 2683° / 67°

0.16

83 °

Seymour, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high83°

Average low67°

Average precipitation0.16 in

Chance of precipitation28%

Record high98° (2003)

Record low53° (2015)

Thu, 2782° / 67°

0.11

82 °

Seymour, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high82°

Average low67°

Average precipitation0.11 in

Chance of precipitation30%

Record high95° (2013)

Record low55° (1967)

Fri, 2882° / 65°

0.11

82 °

Seymour, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.11 in

Chance of precipitation30%

Record high97° (1984)

Record low47° (1986)

Sat, 2982° / 65°

0.09

82 °

Seymour, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.09 in

Chance of precipitation27%

Record high97° (1984)

Record low50° (1986)

Sun, 3081° / 65°

0.09

81 °

Seymour, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high81°

Average low65°

Average precipitation0.09 in

Chance of precipitation28%

Record high99° (2013)

Record low51° (2009)

Mon, 3181° / 64°

0.11

81 °

Seymour, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.11 in

Chance of precipitation27%

Record high95° (2000)

Record low50° (1967)

Tue, 0181° / 64°

0.15

81 °

Seymour, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.15 in

Chance of precipitation27%

Record high96° (1984)

Record low47° (1967)

Wed, 0281° / 64°

0.08

81 °

Seymour, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.08 in

Chance of precipitation28%

Record high94° (2000)

Record low51° (1974)

Thu, 0380° / 64°

0.08

80 °

Seymour, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.08 in

Chance of precipitation25%

Record high94° (1960)

Record low45° (1974)

Fri, 0480° / 63°

0.09

80 °

Seymour, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.09 in

Chance of precipitation20%

Record high93° (1960)

Record low43° (1974)

Sat, 0580° / 63°

0.07

80 °

Seymour, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.07 in

Chance of precipitation17%

Record high93° (1960)

Record low47° (1962)

Sun, 0679° / 63°

0.11

79 °

Seymour, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.11 in

Chance of precipitation28%

Record high94° (1960)

Record low47° (1962)

Mon, 0779° / 62°

0.15

79 °

Seymour, Monday, 7 September

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.15 in

Chance of precipitation32%

Record high95° (2013)

Record low47° (2025)

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 Seymour, 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 Seymour, 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.