Donnan, IA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Donnan, IA in one place.
Mostly cloudy. High near 71, with temperatures falling to around 69 in the afternoon. Northwest wind around 9 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Donnan, 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: Sep 15, 2026 1:35 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Donnan, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:35 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Donnan
Saturday looks like the warmest upcoming period in Donnan at 74 degrees F.
Monday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Friday Night at about 16 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:35 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 54. North wind around 6 mph.
A slight chance of rain showers between 1pm and 3pm. Partly sunny, with a high near 68. East wind 6 to 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 60. Southeast wind 2 to 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 1pm. Mostly cloudy, with a high near 73. Northeast wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 58. East wind 3 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 72. Southeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 61. South wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74. West wind 12 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind 8 to 12 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Northeast wind around 10 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 50. Northeast wind 6 to 9 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 68. Northeast wind around 8 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 48. Northeast wind around 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Mostly Cloudy
|
71°F |
9 mph
NW
|
|
Tonight
Sep 15
|
Mostly Cloudy
|
54°F |
6 mph
N
|
|
Wednesday
Sep 16
|
Partly Sunny then Slight Chance Rain Showers
|
68°F |
6 to 9 mph
E
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
60°F |
2 to 7 mph
SE
|
|
Thursday
Sep 17
|
Chance Rain Showers
|
73°F |
3 mph
NE
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms Likely
|
58°F |
3 to 9 mph
E
|
|
Friday
Sep 18
|
Showers And Thunderstorms
|
72°F |
9 to 14 mph
SE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms
|
61°F |
16 mph
S
|
|
Saturday
Sep 19
|
Showers And Thunderstorms
|
74°F |
12 to 16 mph
W
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
56°F |
8 to 12 mph
N
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
67°F |
10 mph
NE
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
50°F |
6 to 9 mph
NE
|
|
Monday
Sep 21
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
68°F |
8 mph
NE
|
|
Monday Night
Sep 21
|
Mostly Clear
|
48°F |
5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Donnan.