Sumner, IA Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Sumner, IA in one place.
A chance of rain showers. Cloudy, with a high near 60. South southeast wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Sumner, 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: Oct 31, 2026 3:48 PM CDT.
The active forecast window currently covers Oct 31 to Nov 6, 2026 for Sumner, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 31 to Nov 6, 2026
- Latest sync
- Oct 31, 2026 3:48 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sumner
Tuesday looks like the warmest upcoming period in Sumner at 66 degrees F.
Friday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Monday at about 14 to 24 mph SSE.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 31, 2026 3:48 PM CDT
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between 7pm and 8pm. Cloudy. Low around 50, with temperatures rising to around 52 overnight. Southeast wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny. High near 65, with temperatures falling to around 61 in the afternoon. Southeast wind 5 to 12 mph.
Rain showers likely after 4am. Mostly cloudy, with a low around 54. Southeast wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Rain showers. Cloudy, with a high near 65. South southeast wind 14 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Cloudy, with a low around 57. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 66. Chance of precipitation is 90%.
A chance of rain showers. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 57. Chance of precipitation is 30%.
A slight chance of rain showers before midnight. Mostly cloudy, with a low around 44.
A slight chance of rain showers. Partly sunny, with a high near 58.
A slight chance of rain showers before midnight. Mostly cloudy, with a low around 43.
A slight chance of rain showers before noon. Partly sunny, with a high near 58.
Mostly cloudy, with a low around 41.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 31
|
Chance Rain Showers
|
60°F |
8 mph
SSE
|
|
Tonight
Oct 31
|
Slight Chance Rain Showers then Cloudy
|
50°F |
6 mph
SE
|
|
Sunday
Nov 1
|
Mostly Sunny
|
65°F |
5 to 12 mph
SE
|
|
Sunday Night
Nov 1
|
Mostly Cloudy then Rain Showers Likely
|
54°F |
8 to 13 mph
SE
|
|
Monday
Nov 2
|
Rain Showers
|
65°F |
14 to 24 mph
SSE
|
|
Monday Night
Nov 2
|
Showers And Thunderstorms
|
57°F |
16 to 24 mph
S
|
|
Tuesday
Nov 3
|
Rain Showers
|
66°F |
13 to 16 mph
SW
|
|
Tuesday Night
Nov 3
|
Chance Rain Showers
|
46°F |
9 to 13 mph
W
|
|
Wednesday
Nov 4
|
Chance Rain Showers
|
57°F |
12 mph
NW
|
|
Wednesday Night
Nov 4
|
Slight Chance Rain Showers then Mostly Cloudy
|
44°F |
8 mph
NNW
|
|
Thursday
Nov 5
|
Slight Chance Rain Showers
|
58°F |
9 mph
N
|
|
Thursday Night
Nov 5
|
Slight Chance Rain Showers then Mostly Cloudy
|
43°F |
6 mph
NNE
|
|
Friday
Nov 6
|
Slight Chance Rain Showers then Partly Sunny
|
58°F |
7 mph
NNE
|
|
Friday Night
Nov 6
|
Mostly Cloudy
|
41°F |
5 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sumner.
