Weather forecast for 10 daysCoster, IA
Weather forecast for the weekend
Saturday Oct 17, 2026
- min.
- 39°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 16mphSSW 196°
- Humidity: 63%
- UV index: 0
- Sunrise: 7:26 am CDT
- Sunset: 6:25 pm CDT
- details ▼
During the late afternoon and into the evening, the forecast calls for endless blue skies and perfectly clear weather.
The lowest forecasted temperature is an icy 39.2°F.
Sunrise was at 7:26 am and sunset will be at 6:25 pm; the daylight will last for 10h and 59min.
The lowest forecasted temperature is an icy 39.2°F.
Sunrise was at 7:26 am and sunset will be at 6:25 pm; the daylight will last for 10h and 59min.
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphSSW 195°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:27 am CDT
- Sunset: 6:23 pm CDT
- details ▼
Tomorrow, expect consistent sunshine and open skies.
Temperatures will oscillate between an enjoyable 64.4°F at their highest and a wintry 39.2°F at their lowest.
Tomorrow's peak is anticipated to be slightly warmer than the regular high for October at 58.3°F.
Sunrise will be at 7:27 am and sunset at 6:23 pm; tomorrow's daylight will last for 10h and 56min.
Temperatures will oscillate between an enjoyable 64.4°F at their highest and a wintry 39.2°F at their lowest.
Tomorrow's peak is anticipated to be slightly warmer than the regular high for October at 58.3°F.
Sunrise will be at 7:27 am and sunset at 6:23 pm; tomorrow's daylight will last for 10h and 56min.
10-day overview
Daily temperatures
Maximum temperature: 73°C.
Coldest day: tomorrow 64°C.
Coldest day: tomorrow 64°C.
Chance of precipitation
Highest chance: 15%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 39°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 16mphSSW 196°
- Humidity: 63%
- UV index: 0
- Sunrise: 7:26 am CDT
- Sunset: 6:25 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphSSW 195°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:27 am CDT
- Sunset: 6:23 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphS 172°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:29 am CDT
- Sunset: 6:22 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 45°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 9mphSSE 150°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:30 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 46°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphS 183°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:31 am CDT
- Sunset: 6:19 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 48°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 7mphSSE 150°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:32 am CDT
- Sunset: 6:17 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 54°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 13mphSSE 151°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:33 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 73°F
- 52°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 14mphSSE 164°
- Humidity: 56%
- UV index: 3
- Sunrise: 7:35 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 9mphSW 226°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:36 am CDT
- Sunset: 6:13 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 73°F
- 46°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 9mphESE 114°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:37 am CDT
- Sunset: 6:11 pm CDT
- details ▼
It is expected that a combination of gloomy and clear weather is predicted.
Rainfall is not anticipated in Coster in the upcoming period.
In the coming days, the maximum temperature will range between 64.4°F and 73.4°F, while the difference in minimum temperatures will be substantial, as temperatures overnight will fluctuate from 39.2°F up to 53.6°F.
The warmest days will be Thursday through next Saturday and Monday, with a maximum of 73.4°F; the coldest day will be Sunday, with a maximum of 64.4°F.
Rainfall is not anticipated in Coster in the upcoming period.
In the coming days, the maximum temperature will range between 64.4°F and 73.4°F, while the difference in minimum temperatures will be substantial, as temperatures overnight will fluctuate from 39.2°F up to 53.6°F.
The warmest days will be Thursday through next Saturday and Monday, with a maximum of 73.4°F; the coldest day will be Sunday, with a maximum of 64.4°F.
Updated: Oct 17, 2026 @ 20:07:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, sunny and dry conditions are anticipated.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The maximum temperature tomorrow will be moderately higher than the average highest temperature in October. The lowest temperature will be also a few degrees lower than the average low of 43.2°F.
The maximum temperature tomorrow will be moderately higher than the average highest temperature in October. The lowest temperature will be also a few degrees lower than the average low of 43.2°F.
On Sunday, in Coster, sunrise will be at 7:27 am and sunset at 6:23 pm (CDT).
In Coster, Iowa, the length of the day tomorrow will be 10h and 56min.





