Marengo, IA Weather Forecast
Local 7-day forecast
Partly Sunny then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Marengo, IA in one place.
Showers and thunderstorms likely between 1pm and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Marengo, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 5:56 AM CDT.
The active forecast window currently covers Apr 17 to Apr 21, 2026 for Marengo, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 5:56 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Marengo
Friday looks like the warmest upcoming period in Marengo at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Friday at about 10 to 20 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 5:56 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 50. Chance of precipitation is 40%.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 30.
Sunny, with a high near 54.
Mostly clear, with a low around 34.
Sunny, with a high near 67.
Mostly clear, with a low around 47.
Sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Partly Sunny then Showers And Thunderstorms Likely
|
78°F |
10 to 20 mph
S
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms Likely
|
38°F |
15 mph
SW
|
|
Saturday
Apr 18
|
Chance Showers And Thunderstorms
|
50°F |
15 to 20 mph
NW
|
|
Saturday Night
Apr 18
|
Slight Chance Rain Showers then Mostly Clear
|
30°F |
10 to 15 mph
NW
|
|
Sunday
Apr 19
|
Sunny
|
54°F |
10 to 15 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
34°F |
5 to 10 mph
S
|
|
Monday
Apr 20
|
Sunny
|
67°F |
5 to 15 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
47°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Sunny
|
72°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Marengo.
