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Merrill, IA 51038 Weather

It is 57°F and cloudy in Merrill, IA 51038, observed at 12 AM CDT. Today: Chance Rain Showers, high 63°F, low 50°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Merrill, IA 51038 current weather

57°F

Cloudy

H 63° / L 50°Feels like 57°

Observed at Sioux City, Sioux Gateway Airport (20.9 mi away), 10/31/2026, 12:00 AM CDT

Hourly forecast

NWS, updated 10/30/2026, 10:12 PM PT

  1. Now54°11%
  2. 1 AM54°26%
  3. 2 AM53°23%
  4. 3 AM51°10%
  5. 4 AM53°15%
  6. 5 AM53°19%
  7. 6 AM54°14%
  8. 7 AM56°24%
  9. 8 AM55°22%
  10. 9 AM57°31%
  11. 10 AM59°20%
  12. 11 AM60°21%
  13. 12 PM61°
  14. 1 PM61°
  15. 2 PM62°23%
  16. 3 PM62°18%
  17. 4 PM62°16%
  18. 5 PM63°31%
  19. 6 PM61°31%
  20. 7 PM60°20%
  21. 8 PM58°30%
  22. 9 PM57°23%
  23. 10 PM57°
  24. 11 PM57°13%
  25. 12 AM56°15%Sun
  26. 1 AM56°15%
  27. 1 AM55°24%
  28. 2 AM55°27%
  29. 3 AM54°20%
  30. 4 AM54°
  31. 5 AM54°12%
  32. 6 AM53°24%
  33. 7 AM54°
  34. 8 AM54°
  35. 9 AM57°
  36. 10 AM59°
  37. 11 AM60°
  38. 12 PM62°
  39. 1 PM63°
  40. 2 PM64°
  41. 3 PM64°
  42. 4 PM64°
  43. 5 PM63°
  44. 6 PM61°13%
  45. 7 PM59°13%
  46. 8 PM58°13%
  47. 9 PM58°13%
  48. 10 PM58°13%

10-day forecast

Tap a day for details

  • Today10/3131% chance of precipitationLow 50°High 63°

    Saturday: A chance of rain showers after 7am. Mostly cloudy, with a high near 63. South southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Overnight: A chance of rain showers between 1am and 3am, then a slight chance of showers and thunderstorms. Cloudy. Low around 50, with temperatures rising to around 53 overnight. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Rain Showers
  • Sun11/175% chance of precipitationLow 54°High 64°

    Sunday: A slight chance of rain showers before 7am. Mostly cloudy, with a high near 64. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Sunday Night: Rain showers after midnight. Mostly cloudy. Low around 54, with temperatures rising to around 57 overnight. Southeast wind 10 to 20 mph. Chance of precipitation is 80%.

    Slight Chance Rain Showers then Mostly Cloudy
  • Mon11/2100% chance of precipitationLow 49°High 66°

    Monday: Showers and thunderstorms. Cloudy, with a high near 66. South southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.

    Monday Night: Showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 80%.

    Showers And Thunderstorms
  • Tue11/375% chance of precipitationLow 44°High 57°

    Tuesday: Rain showers. Mostly cloudy, with a high near 57. Chance of precipitation is 80%.

    Tuesday Night: A chance of rain showers. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.

    Rain Showers
  • Wed11/422% chance of precipitationLow 41°High 56°

    Wednesday: A slight chance of rain showers. Mostly sunny, with a high near 56.

    Wednesday Night: Partly cloudy, with a low around 41.

    Slight Chance Rain Showers
  • Thu11/514% chance of precipitationLow 38°High 52°

    Thursday: Partly sunny, with a high near 52.

    Thursday Night: Partly cloudy, with a low around 38.

    Partly Sunny
  • Fri11/6Low High 52°

    Friday: Mostly sunny, with a high near 52.

    Mostly Sunny
  • Sat11/7Model blend19% chance of precipitationLow 40°High 57°

    Saturday: Mostly cloudy. High near 57°. Low that night near 40°. About 0.03 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend16% chance of precipitationLow 41°High 58°

    Sunday: Partly cloudy, slight chance of rain. High near 58°. Low that night near 41°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Mon11/9Model blendLow 42°High 59°

    Monday: Partly cloudy. High near 59°. Low that night near 42°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.699, -96.307 from the NWS FSD office, updated 10/30/2026, 10:12 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KSUX (Sioux City/Day Fld, 22 mi), model run 10/30/2026, 9:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now54°Cloudy11%10 mph
  2. 1 AM54°Chance Rain Showers26%5 mph
  3. 2 AM53°Slight Chance Rain Showers23%5 mph
  4. 3 AM51°Cloudy10%5 mph
  5. 4 AM53°Slight Chance Showers And Thunderstorms15%5 mph
  6. 5 AM53°Slight Chance Showers And Thunderstorms19%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Merrill, IA 51038 right now?
The latest observation from Sioux City, Sioux Gateway Airport was 57°F and cloudy, reported at 10/31/2026, 12:00 AM CDT.
What is the high temperature today in Merrill, IA 51038?
The National Weather Service forecast for saturday calls for a high near 63°F. Chance Rain Showers.
Will it rain in Merrill, IA 51038 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Merrill, IA 51038?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 7 to Nov 9) come from the NOAA National Blend of Models, with highs of 57°F to 59°F. Model guidance this far out often changes.
What time is sunrise and sunset in Merrill, IA 51038 today?
Sunrise is about 7:58 AM CDT and sunset is about 6:19 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Merrill, IA 51038?
At Le Mars, the 1991 to 2020 normal high in October is 63°F and the normal low is 37°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
1.49 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Iowa hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:General thunderstormsOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Northwest Iowa)
37GoodOzone
AQI forecast tomorrow (Northwest Iowa)
52ModeratePM2.5

UV index guide · Air quality

Drought

By county

Plymouth County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:58 AM
Sunset
6:19 PM
Daylight
10 hr 21 min
Moon
Waning Gibbous 74% lit
First light (civil dawn)
7:29 AM
Last light (civil dusk)
6:48 PM
Moonrise
11:14 PM
Moonset
2:07 PM

Normal October weather

Climate

Normal October high 63°, low 37°, precipitation 2.40 in for the month. 1991 to 2020 normals at Le Mars, 10 mi away.

Other places nearby

Data sources

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About this data

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