Coster, IA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Coster, IA in one place.
Mostly sunny. High near 63, with temperatures falling to around 58 in the afternoon. Southwest wind 2 to 13 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Coster, 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: Nov 8, 2026 4:14 AM CST.
The active forecast window currently covers Nov 9 to Nov 14, 2026 for Coster, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 9 to Nov 14, 2026
- Latest sync
- Nov 8, 2026 4:14 AM CST
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Coster
Monday looks like the warmest upcoming period in Coster at 63 degrees F.
Thursday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for Monday at about 2 to 13 mph SW.
The forecast from Nov 9 through Nov 14 stays mostly dry.
Forecast Details
- Last updated
- Nov 8, 2026 4:14 AM CST
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 38. West northwest wind around 5 mph.
Sunny, with a high near 59.
Mostly cloudy, with a low around 38.
Partly sunny, with a high near 52.
Partly cloudy, with a low around 33.
Mostly sunny, with a high near 46.
Partly cloudy, with a low around 28.
Sunny, with a high near 46.
Mostly clear, with a low around 32.
Mostly sunny, with a high near 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Nov 9
|
Mostly Sunny
|
63°F |
2 to 13 mph
SW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
38°F |
5 mph
WNW
|
|
Tuesday
Nov 10
|
Sunny
|
59°F |
2 mph
NW
|
|
Tuesday Night
Nov 10
|
Mostly Cloudy
|
38°F |
1 mph
N
|
|
Veterans Day
Nov 11
|
Partly Sunny
|
52°F |
1 to 8 mph
N
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
33°F |
6 mph
N
|
|
Thursday
Nov 12
|
Mostly Sunny
|
46°F |
6 to 10 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
28°F |
1 to 5 mph
N
|
|
Friday
Nov 13
|
Sunny
|
46°F |
1 to 5 mph
N
|
|
Friday Night
Nov 13
|
Mostly Clear
|
32°F |
3 mph
W
|
|
Saturday
Nov 14
|
Mostly Sunny
|
53°F |
2 to 8 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Coster.