Current conditions at
Spencer Municipal Airport (KSPW)
Lat: 43.17°NLon: 95.21°WElev: 1332ft.
Overcast
64°F
18°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 30.00 in (1015.1 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 19 Aug 1:53 am CDT |
Extended Forecast for
3 Miles N Marathon IA
Overnight

Low: 60 °F
Partly Cloudy
Wednesday
High: 78 °F
Partly Sunny
then Slight
Chance
ShowersWednesday Night

Low: 57 °F
Mostly Clear
Thursday

High: 82 °F
Mostly Sunny
Thursday Night

Low: 62 °F
Slight Chance
T-stormsFriday

High: 83 °F
Sunny
Friday Night

Low: 61 °F
Mostly Clear
Saturday

High: 79 °F
Sunny
Saturday Night

Low: 57 °F
Partly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 60. Calm wind becoming northeast around 5 mph.
Wednesday
A slight chance of showers between noon and 3pm. Partly sunny, with a high near 78. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 57. Calm wind becoming southwest around 5 mph.
Thursday
Mostly sunny, with a high near 82. South southwest wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 62. South southwest wind around 5 mph.
Friday
Sunny, with a high near 83. Northwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 82.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles N Marathon IA
42.92°N 94.97°W (Elev. 1401 ft)
42.92°N 94.97°W (Elev. 1401 ft)
1:32 am CDT Aug 19, 2026
2am CDT Aug 19, 2026-6pm CDT Aug 25, 2026


