Missouri River at Sioux City
22 mi- Level
- 10.5 ft
- Flow
- 25,900 cfs
Forecast peak 10.5 ft Sat 1 PM
Reading from Sat 9 AM · NWS gauge page
Appearance
Observed 9:45 AM CDT at KSUX
Mostly sunny and 64°18°, 8°4° warmer than usual, rain tomorrow ~1–2 AM (42%).
Today: low 45°7° (likely 45°7° to 51°11°), high 69°21° (likely 66°19° to 69°21°).
Now 64°18°
Mostly sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 9a | Showers | 62°17° (likely 61°16° to 63°17°) | 62°17° | 20% | 10 mph16 km/h from SSW, gusts 20 mph33 km/h | 61% | 62% | 0 |
| Sat 10a | Showers | 65°18° (likely 64°18° to 66°19°) | 65°18° | 20% | 12 mph19 km/h from SW, gusts 20 mph32 km/h | 58% | 32% | 1 |
| Sat 11a | Cloudy | 67°19° (likely 65°18° to 69°21°) | 67°19° | 20% | 13 mph21 km/h from W, gusts 18 mph29 km/h | 59% | 91% | 1 |
| Sat 12p | Cloudy | 64°18° (likely 61°16° to 65°18°) | 64°18° | 20% | 14 mph23 km/h from NW, gusts 22 mph35 km/h | 63% | 94% | 2 |
| Sat 1p | Cloudy | 63°17° (likely 59°15° to 63°17°) | 63°17° | 20% | 15 mph24 km/h from NW, gusts 23 mph37 km/h | 59% | 95% | 3 |
| Sat 2p | Cloudy | 61°16° (likely 58°14° to 62°17°) | 61°16° | 20% | 16 mph26 km/h from NNW, gusts 23 mph37 km/h | 59% | 96% | 3 |
| Sat 3p | Showers | 60°16° (likely 57°14° to 62°17°) | 60°16° | 20% | 16 mph26 km/h from NNW, gusts 23 mph36 km/h | 60% | 71% | 2 |
| Sat 4p | Cloudy | 58°14° (likely 55°13° to 61°16°) | 58°14° | 20% | 16 mph26 km/h from NNW, gusts 22 mph35 km/h | 59% | 98% | 2 |
| Sat 5p | Cloudy | 58°14° (likely 53°12° to 59°15°) | 58°14° | 10% | 15 mph24 km/h from N, gusts 20 mph32 km/h | 60% | 95% | 1 |
| Sat 6p | Cloudy | 56°13° (likely 51°11° to 56°13°) | 56°13° | 10% | 13 mph21 km/h from N, gusts 19 mph30 km/h | 62% | 88% | 0 |
| Sat 7p | Cloudy | 55°13° (likely 49°9° to 55°13°) | 55°13° | 20%, 0.02 in0.5 mm | 12 mph19 km/h from N, gusts 19 mph30 km/h | 65% | 86% | 0 |
| Sat 8p | Cloudy | 53°12° (likely 49°9° to 53°12°) | 53°12° | 20%, 0.02 in0.5 mm | 12 mph19 km/h from N, gusts 20 mph32 km/h | 69% | 89% | 0 |
| Sat 9p | Cloudy | 52°11° (likely 48°9° to 52°11°) | 52°11° | 20%, 0.02 in0.5 mm | 10 mph16 km/h from N, gusts 21 mph33 km/h | 75% | 89% | 0 |
| Sat 10p | Cloudy | 51°11° (likely 48°9° to 51°11°) | 51°11° | 30%, 0.02 in0.5 mm | 9 mph14 km/h from N, gusts 19 mph31 km/h | 80% | 81% | 0 |
| Sat 11p | Cloudy | 51°11° (likely 48°9° to 52°11°) | 51°11° | 40%, 0.02 in0.5 mm | 9 mph14 km/h from N, gusts 16 mph26 km/h | 80% | 79% | 0 |
| Sun 12a | Cloudy | 50°10° (likely 48°9° to 51°11°) | 47°8° | 40%, 0.02 in0.5 mm | 8 mph13 km/h from N, gusts 14 mph23 km/h | 83% | 81% | 0 |
| Sun 1a | Cloudy | 49°9° (likely 48°9° to 51°11°) | 46°8° | 40% | 7 mph11 km/h from NNE, gusts 14 mph22 km/h | 83% | 89% | 0 |
| Sun 2a | Cloudy | 49°9° (likely 48°9° to 51°11°) | 46°8° | 40% | 7 mph11 km/h from NNE, gusts 14 mph22 km/h | 83% | 83% | 0 |
| Sun 3a | Cloudy | 48°9° (likely 48°9° to 51°11°) | 45°7° | 40% | 7 mph11 km/h from NNE, gusts 14 mph22 km/h | 86% | 78% | 0 |
| Sun 4a | Cloudy | 48°9° (likely 48°9° to 50°10°) | 45°7° | 20% | 7 mph11 km/h from NNE, gusts 14 mph23 km/h | 86% | 74% | 0 |
| Sun 5a | Cloudy | 47°8° (likely 47°8° to 49°9°) | 44°7° | 10% | 7 mph11 km/h from NE, gusts 14 mph22 km/h | 93% | 77% | 0 |
| Sun 6a | Cloudy | 47°8° (likely 47°8° to 50°10°) | 44°7° | 10% | 8 mph13 km/h from NNE, gusts 13 mph22 km/h | 89% | 92% | 0 |
| Sun 7a | Cloudy | 47°8° (likely 47°8° to 50°10°) | 44°7° | 10% | 7 mph11 km/h from NNE, gusts 15 mph23 km/h | 89% | 95% | 0 |
| Sun 8a | Cloudy | 46°8° (likely 46°8° to 50°10°) | 42°6° | 5% | 7 mph11 km/h from NE, gusts 13 mph21 km/h | 93% | 90% | 0 |
| Sun 9a | Cloudy | 48°9° (likely 48°9° to 52°11°) | 45°7° | 5% | 8 mph13 km/h from NE, gusts 15 mph25 km/h | 89% | 77% | 0 |
| Sun 10a | Cloudy | 52°11° (likely 49°9° to 54°12°) | 52°11° | 0% | 8 mph13 km/h from NE, gusts 15 mph25 km/h | 80% | 68% | 1 |
| Sun 11a | Partly sunny | 55°13° (likely 50°10° to 57°14°) | 55°13° | 0% | 8 mph13 km/h from NE, gusts 15 mph24 km/h | 74% | 78% | 2 |
| Sun 12p | Cloudy | 58°14° (likely 51°11° to 60°16°) | 58°14° | 0% | 8 mph13 km/h from ENE, gusts 14 mph22 km/h | 67% | 76% | 3 |
| Sun 1p | Cloudy | 60°16° (likely 54°12° to 63°17°) | 60°16° | 0% | 8 mph13 km/h from NE, gusts 12 mph20 km/h | 60% | 78% | 4 |
| Sun 2p | Cloudy | 61°16° (likely 56°13° to 66°19°) | 61°16° | 0% | 8 mph13 km/h from NE, gusts 13 mph20 km/h | 58% | 77% | 4 |
| Sun 3p | Partly sunny | 63°17° (likely 58°14° to 67°19°) | 63°17° | 0% | 8 mph13 km/h from NE, gusts 13 mph21 km/h | 54% | 72% | 4 |
| Sun 4p | Cloudy | 63°17° (likely 58°14° to 68°20°) | 63°17° | 0% | 9 mph14 km/h from NE, gusts 13 mph20 km/h | 54% | 70% | 3 |
| Sun 5p | Mostly cloudy | 64°18° (likely 58°14° to 67°19°) | 64°18° | 0% | 9 mph14 km/h from NE, gusts 13 mph20 km/h | 52% | 40% | 2 |
| Sun 6p | Mostly cloudy | 62°17° (likely 56°13° to 65°18°) | 62°17° | 10% | 9 mph14 km/h from NNE, gusts 14 mph23 km/h | 56% | 45% | 1 |
| Sun 7p | Cloudy | 59°15° (likely 54°12° to 62°17°) | 59°15° | 30% | 9 mph14 km/h from NE, gusts 16 mph26 km/h | 60% | 79% | 0 |
| Sun 8p | Cloudy | 57°14° (likely 52°11° to 60°16°) | 57°14° | 30% | 9 mph14 km/h from NNE, gusts 19 mph30 km/h | 62% | 79% | 0 |
| Sun 9p | Cloudy | 54°12° (likely 50°10° to 58°14°) | 54°12° | 30% | 9 mph14 km/h from NNE, gusts 19 mph30 km/h | 66% | 96% | 0 |
| Sun 10p | Cloudy | 52°11° (likely 49°9° to 56°13°) | 52°11° | 30% | 9 mph14 km/h from NE, gusts 22 mph35 km/h | 71% | 100% | 0 |
| Sun 11p | Showers | 51°11° (likely 47°8° to 55°13°) | 51°11° | 30% | 9 mph14 km/h from NE, gusts 19 mph31 km/h | 74% | 98% | 0 |
| Mon 12a | Showers | 50°10° (likely 46°8° to 55°13°) | 46°8° | 30% | 9 mph14 km/h from NE, gusts 20 mph33 km/h | 77% | 96% | 0 |
| Mon 1a | Showers | 49°9° (likely 45°7° to 54°12°) | 45°7° | 70%, 0.15 in3.8 mm | 9 mph14 km/h from NE, gusts 20 mph33 km/h | 80% | 97% | 0 |
| Mon 2a | Rain | 48°9° (likely 44°7° to 54°12°) | 44°7° | 70%, 0.15 in3.8 mm | 9 mph14 km/h from ENE, gusts 22 mph35 km/h | 83% | 96% | 0 |
| Mon 3a | Drizzle | 47°8° (likely 44°7° to 53°12°) | 43°6° | 70%, 0.15 in3.8 mm | 9 mph14 km/h from ENE, gusts 23 mph36 km/h | 86% | 97% | 0 |
| Mon 4a | Cloudy | 46°8° (likely 44°7° to 53°12°) | 41°5° | 70%, 0.15 in3.8 mm | 9 mph14 km/h from ENE, gusts 23 mph37 km/h | 89% | 98% | 0 |
| Mon 5a | Showers | 45°7° (likely 44°7° to 52°11°) | 40°4° | 70%, 0.15 in3.8 mm | 9 mph14 km/h from ENE, gusts 21 mph34 km/h | 93% | 94% | 0 |
| Mon 6a | Cloudy | 44°7° (likely 44°7° to 52°11°) | 38°3° | 70%, 0.15 in3.8 mm | 10 mph16 km/h from ENE, gusts 21 mph34 km/h | 96% | 99% | 0 |
| Mon 7a | Showers | 44°7° (likely 44°7° to 52°11°) | 38°3° | 70%, 0.04 in1 mm | 10 mph16 km/h from E, gusts 21 mph34 km/h | 96% | 100% | 0 |
| Mon 8a | Showers | 45°7° (likely 45°7° to 53°12°) | 40°4° | 70%, 0.04 in1 mm | 10 mph16 km/h from ENE, gusts 18 mph28 km/h | 96% | 99% | 0 |
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
40% chance · 0.1 in2.5 mm
Overnight
midnight–6 AM
40% chance · 0.02 in0.5 mm
Official NWS forecast
Today: Isolated rain showers before 5pm. Mostly cloudy. High near 69, with temperatures falling to around 58 in the afternoon. West northwest wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight: A chance of rain showers between 7pm and 5am. Mostly cloudy. Low around 45, with temperatures rising to around 47 overnight. North wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
70% chance · 0.75 in19 mm
Official NWS forecast
Day: Partly sunny, with a high near 64. Northeast wind around 9 mph.
Night: Rain showers likely after 7pm. Mostly cloudy, with a low around 43. Northeast wind around 9 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.25 in6.3 mm
Afternoon
noon–6 PM
50% chance · 0.04 in1 mm
Evening
6 PM–midnight
50% chance · 0.05 in1.2 mm
Overnight
midnight–6 AM
40% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely. Cloudy, with a high near 60. East northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: Rain showers likely. Mostly cloudy, with a low around 45. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance · 0.02 in0.5 mm
Overnight
midnight–6 AM
30% chance · 0.02 in0.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 7am. Partly sunny, with a high near 62. Southwest wind around 8 mph, with gusts as high as 17 mph.
Night: A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 47. South wind 5 to 9 mph, with gusts as high as 18 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers before 7am. Mostly sunny, with a high near 66. Southwest wind 7 to 12 mph, with gusts as high as 21 mph.
Night: A slight chance of rain showers between 7pm and 1am. Mostly clear, with a low around 40. West northwest wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 65. East southeast wind 6 to 9 mph, with gusts as high as 16 mph.
Night: A slight chance of rain showers. Partly cloudy, with a low around 46. Southeast wind 5 to 8 mph, with gusts as high as 16 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
30% chance · 0.03 in0.8 mm
Evening
6 PM–midnight
30% chance · 0.09 in2.2 mm
Overnight
midnight–6 AM
40% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 64. South wind 8 to 12 mph, with gusts as high as 22 mph.
Night: A chance of rain showers. Mostly cloudy, with a low around 45. South southeast wind around 10 mph, with gusts as high as 18 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
50% chance · 0.03 in0.8 mm
Afternoon
noon–6 PM
50% chance · 0.04 in1.1 mm
Evening
6 PM–midnight
50% chance · 0.01 in0.4 mm
Overnight
midnight–6 AM
40% chance · 0.12 in3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.1 in2.5 mm
Afternoon
noon–6 PM
20% chance · 0.04 in1 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
30% chance · 0.05 in1.3 mm
Evening
6 PM–midnight
30% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 69°, low 45°.
Dry, high 64°, low 43°, cooling off.
69% chance of rain, high 60°, low 45°, cooling off.
Highs 57–66°; chance of precipitation on Saturday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (FSD) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 10.5 ft Sat 1 PM
Reading from Sat 9 AM · NWS gauge page
Reading from Sat 8:45 AM · NWS gauge page
Reading from Sat 8:45 AM · NWS gauge page
Reading from Sat 8:45 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 84% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at.
Dry air outside (dew point 48°F).
Today, 11:00 AM–3:00 PM
Good stretch to open the windows.
Today’s expected high is 8°4° warmer than typical.
On average 2°1° colder than normal (daily mean temperature).
Emerson weather by month: normals, records, snow and freeze dates
Sunrise 7:50 AM, sunset 6:31 PM.
Clouds most of the night (about 84% cover).
Waxing gibbous
97% lit · growing