Calmar, IA Weather Forecast
Local 7-day forecast
Areas Of Fog then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Calmar, IA in one place.
Areas of fog before 9am, then a chance of showers and thunderstorms. Mostly cloudy. High near 81, with temperatures falling to around 77 in the afternoon. Southwest wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Calmar, 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: Aug 6, 2026 4:44 PM CDT.
The active forecast window currently covers Aug 7 to Aug 12, 2026 for Calmar, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 7 to Aug 12, 2026
- Latest sync
- Aug 6, 2026 4:44 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Calmar
Sunday looks like the warmest upcoming period in Calmar at 82 degrees F.
Friday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Friday at about 7 to 12 mph SW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 6, 2026 4:44 PM CDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 59. West wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 79. Northeast wind 1 to 5 mph.
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 7am. Mostly sunny, with a high near 82. South wind around 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely after 7pm. Partly cloudy, with a low around 66. South wind 2 to 6 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 82. Southwest wind around 8 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. North wind around 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Northeast wind around 3 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Southeast wind around 2 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 78. North wind around 5 mph. Chance of precipitation is 20%.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 60. North wind around 3 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Aug 7
|
Areas Of Fog then Chance Showers And Thunderstorms
|
81°F |
7 to 12 mph
SW
|
|
Friday Night
Aug 7
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
6 to 9 mph
W
|
|
Saturday
Aug 8
|
Sunny
|
79°F |
1 to 5 mph
NE
|
|
Saturday Night
Aug 8
|
Chance Showers And Thunderstorms
|
63°F |
5 mph
S
|
|
Sunday
Aug 9
|
Showers And Thunderstorms Likely then Mostly Sunny
|
82°F |
5 mph
S
|
|
Sunday Night
Aug 9
|
Showers And Thunderstorms Likely
|
66°F |
2 to 6 mph
S
|
|
Monday
Aug 10
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
82°F |
8 mph
SW
|
|
Monday Night
Aug 10
|
Partly Cloudy then Chance Showers And Thunderstorms
|
64°F |
5 mph
N
|
|
Tuesday
Aug 11
|
Chance Showers And Thunderstorms
|
79°F |
3 mph
NE
|
|
Tuesday Night
Aug 11
|
Slight Chance Showers And Thunderstorms
|
62°F |
2 mph
SE
|
|
Wednesday
Aug 12
|
Slight Chance Showers And Thunderstorms
|
78°F |
5 mph
N
|
|
Wednesday Night
Aug 12
|
Partly Cloudy then Slight Chance Rain Showers
|
60°F |
3 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Calmar.