7 Day Forecast Display
Northwest Arkansas Weather Forecast for Benton, Carroll, Madison, Newton & Washington Counties
Updated at 10:30 a.m. cdt Tuesday, October 20, 2020

This
Afternoon



Warmer

High
67° to 72°

Wind Bec:
S 4|9
Rainfall:
< 0.25"

Tonight


Relatively
Mild

Low:
57° to 62°

Wind Bec:
Variable
Rainfall:
< 0.25"

Wednesday


Continued
Warmer

High
75° to 80°

Wind:
S 8|16

Wednesday
Night


Unusually
Mild

Low:
62° to 67°

Wind:
S 6|12

Thursday


Windy &
Unusually
Warm
High
78° to 83°

Wind:
S 12|18
Gust 30

Thursday
Night


Unusually
Mild

Low:
62° to 67°

Wind:
S 8|16
Rainfall:
< 0.10"

Friday


Chance of
Showers
& Storms
High
68° to 73°

Wind Bec:
N 9|18
Rainfall:
< 0.50"

Friday
Night


Chance of
Rain &
Cool
Low:
44° to 49°

Wind:
NE 6|12
Rainfall:
< 0.10"

Saturday


Chance of
Rain &
Cool
High
50° to 55°

Wind:
E 6|12
Rainfall:
< 0.10"

Saturday
Night



Cool

Low:
50° to 55°

Wind:
SE 4|9
Rainfall:
< 0.25"

Sunday


Chance of
Showers
& Storms
High
64° to 69°

Wind:
S 9|18
Gust 25
Rainfall:
< 0.25"

Sunday
Night


Showers
& Storms
Likely
Low:
37° to 42°

Wind Bec:
N 9|18
Gust 25
Rainfall:
< 1.00"

Monday


Occasional
Rain &
Colder
High
37° to 42°

Wind:
N 9|18
Gust 25
Rainfall:
< 0.25"
 

This Afternoon...Becoming Partly Cloudy and Warmer with a Chance of Showers and a Few Thunderstorms. Highs from 67° to 72°. Wind Becoming Southerly around 4 to 9 mph. Chance of Precipitation is 30 Percent.
Tonight...Partly Cloudy and Relatively Mild with a Chance of Showers and a Few Thunderstorms. Lows from 57° to 62°. Wind Becoming Variable around 4 to 9 mph. Chance of Precipitation is 30 Percent.
Wednesday...Partly Cloudy and Continued Warmer. Highs from 75° to 80°. Wind Southerly around 8 to 16 mph.

Extended Forecast:
Wednesday Night...Clear and Relatively Mild. Lows from 62° to 67°. Wind Southerly around 6 to 12 mph.
Thursday...Sunny, Windy and Unusually Warm. Highs from 78° to 83°. Wind Southerly around 12 to 18 mph, Gust to 30 mph.
Thursday Night...Becoming Partly Cloudy, Breezy and Relatively Mild with a Chance of Showers and Thunderstorms After Midnight. Lows from 62° to 67°. Wind Southerly around 8 to 16 mph. Chance of Precipitation is 20 Percent After Midnight.
Friday...Mostly Cloudy and Turning Cooler with a Chance of Showers and a Few Thunderstorms. Highs from 68° to 73° in the Morning, with Temperatures Slowly Falling During the Day. Wind Becoming Northerly around 9 to 18 mph. Chance of Precipitation is 60 Percent.
Friday Night...Mostly Cloudy and Cool with a Chance of Rain. Lows from 44° to 49°. Wind Northeasterly around 6 to 12 mph. Chance of Precipitation is 30 Percent.
Saturday...Mostly Cloudy and Cool with a Chance of Rain. Highs from 50° to 55°. Wind Easterly around 6 to 12 mph. Chance of Precipitation is 30 Percent.
Saturday Night...Mostly Cloudy and Cool with a Chance of Showers and a Few Thunderstorms. Lows from 50° to 55°, with Temperatures Slowly Rising after Midnight. Wind Southeasterly around 4 to 9 mph. Chance of Precipitation is 20 Percent.
Sunday...Mostly Cloudy, Breezy and Relatively Mild with a Chance of Showers and a Few Thunderstorms. Highs from 64° to 69°. Wind Southerly around 9 to 18 mph, Gust to 25 mph. Chance of Precipitation is 40 Percent.
Sunday Night...Cloudy, Breezy and Turning Colder with Showers and Thunderstorms Likely. Lows from 37° to 42°. Wind Becoming Northerly around 9 to 18 mph, Gust to 25 mph. Chance of Precipitation is 70 Percent.
Monday...Cloudy, Breezy and Much Colder with Occasional Rain. Highs from 37° to 42°, with Temperatures Steady or Slowly Falling During the Day. Wind Northerly around 9 to 18 mph, Gust to 25 mph. Chance of Precipitation is 70 Percent.

Both Graphic & Text Forecast created & produced by webmaster@nwarwx.com

Area Weather Summary for Northwest Arkansas
Last Updated at 10:30 a.m. cdt Tuesday, October 20, 2020

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A warm front moved into portions of Northwest Arkansas during the morning hours. North of the front low level clouds remain in place across the area. Temperatures across Northwest Arkansas at mid-day were around 60 degrees. Meanwhile, An upper level disturbance continued moving across the Plains at mid-day. This disturbance, interacting with the warm front is resulting in the scattered showers and thunderstorms across Northwest Arkansas. Scattered showers and a few thunderstorms will continue to move northeast across Northwest Arkansas through mid-day, before the majority of the activity moves off into southwest Missouri. A few showers may linger across parts of Northwest Arkansas into this afternoon.

Otherwise, the warm front will continue moving northward this afternoon. Just how far north the front can make it before it stalls this evening is the next question. Current thinking is the warm front will move into southwest Missouri by late this afternoon. Temperatures will range from the mid and upper 60s along the Arkansas-Missouri border, to the lower and mid 70s along and south of Arkansas state highway 16 this afternoon. By late this afternoon and more likely into tonight, another round of showers and a few thunderstorms will develop along and just north of the front across northeast Oklahoma into southwest Missouri and move to the northeast. It's possible that this activity will force the front to sag slightly back to the south into portions of Benton and Carroll counties tonight.

By Wednesday, the warm frontal boundary will have lifted well to the north of the area, and warm along with humid conditions will then prevail Wednesday and Thursday. A windy day is expected on Thursday as the pressure gradient tightens up ahead of the next low pressure system. Gusty south to southwesterly winds will continue into Thursday night. We will have to monitor for possible wind advisory conditions as we approach Thursday.

The next cold front will then sweep across Northwest Arkansas late Thursday night into Friday, bringing another round of showers and thunderstorms and a return to cooler temperatures. We could again see temperature ranges from the 50s in Benton county, to 70s in Newton county during the day Friday. The cooler weather will linger into Saturday with additional precipitation chances possible with some upper level disturbances moving across the area.

Our next weather system will then move southward into the southwestern U.S. late this weekend and then move east toward the area by the middle of next week. This will leave the area in an upper level southwesterly flow pattern through early next week. As moisture and lift move across the area, there could be multiple rounds of showers and thunderstorms that occur from Sunday into Sunday night. Forecast uncertainty increases markedly by early next week with forecast models yielding wide ranges in timing and strength of the next front. The consistent pattern evolution offered by various modeling systems does raise confidence in much below normal temperatures arriving for early next week. Precipitation chances also continue to trend upward within this pattern and a welcome widespread precipitation event remains possible.

...This Day in Weather History...

In 2019, severe thunderstorms moved across Northwest Arkansas during the late evening and night-time hours. A long-tracked EF-2 tornado struck in Benton county that caused considerable damage northeast of Siloam Springs and in the Pinnacle Hills area of Rogers.

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