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Marathon IA Weather - Clear - 80°F
Clear
80°F
Updated 6:51 pm
Feels Like 80°F
Humidity 39%
Wind SW 12 mph
Barometer  29.96 in
Dew Point 53°F
Marathon IA Weather - Clear - 27°C
Clear
27°C
Updated 6:51 pm
Feels Like 27°C
Humidity 39%
Wind SW 19 km/h
Barometer  101.5 kPa
Dew Point 12°C
Marathon, IA Weather and Current Conditionsmarathon ia weather forecast

Marathon, IA Weather Forecast

Marathon Iowa WeatherMarathon, Iowa Weather Weather Forecast
14 day API weather forecast for Marathon, Iowa. Note: The 7-day weather forecast for Marathon, IA is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Marathon, IA Weather Forecast Dated: 651 PM Thu Sep 10 2026
Expect a mild stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.

Thursday, September 10, 2026

Mid-Morning
Marathon Weather - 2026-09-10 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-10 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Marathon Weather - 2026-09-10 - Evening - Sunny
72°F 23°C
Sunny
Warm and summery near 80°F 27°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the N to the SSE at 9 mph 13 km/h.

Friday, September 11, 2026

Mid-Morning
Marathon Weather - 2026-09-11 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-11 - Afternoon - Cloudy
85°F 29°C
Cloudy
Early-Evening
Marathon Weather - 2026-09-11 - Evening - Overcast
79°F 27°C
Overcast
Balmy with temperatures reaching 85°F 29°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds blowing from the S at 20 mph 32 km/h. Gusts up to 33 mph 54 km/h.

Saturday, September 12, 2026

Mid-Morning
Marathon Weather - 2026-09-12 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-12 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Marathon Weather - 2026-09-12 - Evening - Sunny
75°F 24°C
Sunny
Enjoyable around 78°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the N to the NNE at 9 mph 15 km/h.

Sunday, September 13, 2026

Mid-Morning
Marathon Weather - 2026-09-13 - Morning - Scattered Showers
60°F 15°C
Scattered Showers
Mid-Afternoon
Marathon Weather - 2026-09-13 - Afternoon - Light Showers
67°F 20°C
Light Showers
Early-Evening
Marathon Weather - 2026-09-13 - Evening - Scattered Showers
63°F 18°C
Scattered Showers
Cool with a high near 67°F 20°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the E to the ESE at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.

Monday, September 14, 2026

Mid-Morning
Marathon Weather - 2026-09-14 - Morning - Scattered Showers
75°F 24°C
Scattered Showers
Mid-Afternoon
Marathon Weather - 2026-09-14 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Marathon Weather - 2026-09-14 - Evening - Overcast
78°F 26°C
Overcast
Mild with a high of 77°F 25°C, scattered downpours possible, with steady humidity and steady pressure. A stray shower or storm late in the day. Winds tapering down from SSW 17 mph 28 km/h to WSW 8 mph 12 km/h.

Tuesday, September 15, 2026

Mid-Morning
Marathon Weather - 2026-09-15 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Marathon Weather - 2026-09-15 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Marathon Weather - 2026-09-15 - Evening - Overcast
65°F 19°C
Overcast
Pleasant near 69°F 20°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the NNW to the NE at 8 mph 13 km/h.

Wednesday, September 16, 2026

Mid-Morning
Marathon Weather - 2026-09-16 - Morning - Overcast
56°F 14°C
Overcast
Mid-Afternoon
Marathon Weather - 2026-09-16 - Afternoon - Overcast
65°F 18°C
Overcast
Early-Evening
Marathon Weather - 2026-09-16 - Evening - Overcast
65°F 18°C
Overcast
Comfortable at 65°F 18°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds out of the NE at 7 mph 12 km/h.

Thursday, September 17, 2026

Mid-Morning
Marathon Weather - 2026-09-17 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-17 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Marathon Weather - 2026-09-17 - Evening - Sunny
68°F 20°C
Sunny
Enjoyable around 71°F 22°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds moving from the SSE to the S at 8 mph 12 km/h.

Friday, September 18, 2026

Mid-Morning
Marathon Weather - 2026-09-18 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-18 - Afternoon - Sunny
74°F 23°C
Sunny
Early-Evening
Marathon Weather - 2026-09-18 - Evening - Sunny
73°F 23°C
Sunny
Mild temperatures up to 74°F 23°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds SSW at 8 mph 13 km/h.

Saturday, September 19, 2026

Mid-Morning
Marathon Weather - 2026-09-19 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-19 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Marathon Weather - 2026-09-19 - Evening - Sunny
76°F 25°C
Sunny
Mild with a high of 79°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Marathon Weather - 2026-09-20 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-20 - Afternoon - Sunny
76°F 25°C
Sunny
Early-Evening
Marathon Weather - 2026-09-20 - Evening - Sunny
73°F 23°C
Sunny
Pleasant near 76°F 25°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the S at 9 mph 14 km/h.

Monday, September 21, 2026

Mid-Morning
Marathon Weather - 2026-09-21 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-21 - Afternoon - Sunny
76°F 25°C
Sunny
Early-Evening
Marathon Weather - 2026-09-21 - Evening - Sunny
74°F 24°C
Sunny
Comfortable with temperatures reaching 76°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the S at 12 mph 19 km/h. Gusts up to 21 mph 33 km/h.

Tuesday, September 22, 2026

Mid-Morning
Marathon Weather - 2026-09-22 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-22 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Marathon Weather - 2026-09-22 - Evening - Sunny
69°F 21°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds WNW at 18 mph 29 km/h. Gusts up to 21 mph 35 km/h.

Wednesday, September 23, 2026

Mid-Morning
Marathon Weather - 2026-09-23 - Morning - Sunny
47°F 8°C
Sunny
Mid-Afternoon
Marathon Weather - 2026-09-23 - Afternoon - Sunny
61°F 16°C
Sunny
Early-Evening
Marathon Weather - 2026-09-23 - Evening - Sunny
60°F 16°C
Sunny
Mildly cool near 61°F 16°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the ESE to the ENE at 8 mph 12 km/h.

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Weather by the Numbers

Thu, 10th
Marathon IA Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 81°F 27°C
Lo: 53°F 12°C
Sunrise 06:54 AM
Sunset 07:38 PM
Wind S 4 mph6 km/h
Dew Point 62°F16°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 4% *
Humidity 63%
Fri, 11th
Marathon IA Weather - Friday, Sep 11, 2026 - Partly Cloudy
Hi: 85°F 29°C
Lo: 63°F 17°C
Sunrise 06:55 AM
Sunset 07:36 PM
Wind S 20 mph32 km/h
Dew Point 57°F14°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 4% *
Humidity 46%
Sat, 12th
Marathon IA Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 79°F 26°C
Lo: 60°F 16°C
Sunrise 06:56 AM
Sunset 07:35 PM
Wind N 13 mph22 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 10% *
Humidity 35%
Sun, 13th
Marathon IA Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 71°F 22°C
Lo: 59°F 15°C
Sunrise 06:57 AM
Sunset 07:33 PM
Wind E 11 mph18 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 10% *
Humidity 33%
Mon, 14th
Marathon IA Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 83°F 28°C
Lo: 59°F 15°C
Sunrise 06:58 AM
Sunset 07:31 PM
Wind SSE 17 mph28 km/h
Dew Point 65°F18°C
uv Index 4
Barometric Pressure 29.77 in1008 mb
POP 66% *
Humidity 88%
Tue, 15th
Marathon IA Weather - Tuesday, Sep 15, 2026 - Overcast
Hi: 69°F 21°C
Lo: 59°F 15°C
Sunrise 06:59 AM
Sunset 07:29 PM
Wind N 9 mph15 km/h
Dew Point 45°F7°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 12% *
Humidity 49%
Wed, 16th
Marathon IA Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 67°F 19°C
Lo: 55°F 13°C
Sunrise 07:00 AM
Sunset 07:27 PM
Wind NE 9 mph14 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 12% *
Humidity 49%
Thu, 17th
Marathon IA Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 72°F 22°C
Lo: 53°F 12°C
Sunrise 07:01 AM
Sunset 07:26 PM
Wind SSE 6 mph10 km/h
Dew Point 44°F7°C
uv Index 5
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 45%
Fri, 18th
Marathon IA Weather - Friday, Sep 18, 2026 - Sunny
Hi: 75°F 24°C
Lo: 55°F 13°C
Sunrise 07:02 AM
Sunset 07:24 PM
Wind SSW 9 mph14 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 2% *
Humidity 53%
Sat, 19th
Marathon IA Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 79°F 26°C
Lo: 62°F 17°C
Sunrise 07:04 AM
Sunset 07:22 PM
Wind SSW 2 mph4 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 52%
Sun, 20th
Marathon IA Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 77°F 25°C
Lo: 62°F 16°C
Sunrise 07:05 AM
Sunset 07:20 PM
Wind S 10 mph15 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 46%
Mon, 21st
Marathon IA Weather - Monday, Sep 21, 2026 - Sunny
Hi: 77°F 25°C
Lo: 60°F 16°C
Sunrise 07:06 AM
Sunset 07:18 PM
Wind S 11 mph17 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 43%
Tue, 22nd
Marathon IA Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 73°F 23°C
Lo: 57°F 14°C
Sunrise 07:07 AM
Sunset 07:17 PM
Wind WNW 16 mph26 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.83 in1010 mb
POP 0% *
Humidity 30%
Wed, 23rd
Marathon IA Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 63°F 17°C
Lo: 44°F 7°C
Sunrise 07:08 AM
Sunset 07:15 PM
Wind N 9 mph14 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.3 in1026 mb
POP 3% *
Humidity 53%
* POP = Probability of Precipitation. Data for 12:00 PM.