As of 22:38 CDT

Weather in Williston, ND

70°

Williston, Saturday, 8 August, 22:38

Overcast. Feels like 69°. High 89°, low 53°.

Pressure29.88 inHg

Wind12 mph NE

Humidity58%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

Monthly outlook for Williston, ND: average high 81.8°, average low 58.1°. That is 0.5° above the climate normal for August. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 August (92.5°), the coolest 10 August (48.1°).

81.8°/58.1°

Average high / low

+0.5°

Above normal

3 / 4

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	84°	81.2°	+1.6°
18 August – 27 August	78.1°	80.1°	-1.1°
28 August – 6 September	at normal	77.6°	—

August records over 66 years

104.9°12 August 2018All-time high

42.1°22 August 1966All-time low

Sun, 0985° / 51°

85 °

Williston, Sunday, 9 August

Clear. High 85°, low 51°.

Pressure29.91 inHg

Wind7.7 mph E

Humidity30%

Visibility6.2 mi

Dew point44°

Mon, 1084° / 48°

84 °

Williston, Monday, 10 August

Overcast. High 84°, low 48°.

Pressure29.91 inHg

Wind12.7 mph NE

Humidity35%

Visibility6.2 mi

Dew point45°

Tue, 1186° / 57°

86 °

Williston, Tuesday, 11 August

Overcast. High 86°, low 57°.

Pressure29.94 inHg

Wind8.1 mph SE

Humidity30%

Visibility6.2 mi

Dew point44°

Wed, 1284° / 58°

84 °

Williston, Wednesday, 12 August

Clear. High 84°, low 58°.

Pressure29.94 inHg

Wind15.2 mph E

Humidity34%

Visibility6.2 mi

Dew point46°

Thu, 1384° / 59°

84 °

Williston, Thursday, 13 August

Overcast. High 84°, low 59°.

Pressure30.00 inHg

Wind16.7 mph E

Humidity30%

Visibility—

Dew point42°

Fri, 1478° / 65°

0.4

78 °

Williston, Friday, 14 August

Rain. High 78°, low 65°.

Pressure29.97 inHg

Wind18.5 mph E

Humidity50%

Visibility—

Dew point56°

Sat, 1578° / 58°

0.08

78 °

Williston, Saturday, 15 August

Light rain. High 78°, low 58°.

Pressure30.12 inHg

Wind11.2 mph NW

Humidity41%

Visibility—

Dew point46°

Sun, 1680° / 59°

80 °

Williston, Sunday, 16 August

Partly cloudy. High 80°, low 59°.

Pressure30.06 inHg

Wind10.8 mph S

Humidity41%

Visibility—

Dew point49°

Mon, 1792° / 64°

0.02

92 °

Williston, Monday, 17 August

Light rain. High 92°, low 64°.

Pressure29.77 inHg

Wind16.8 mph NW

Humidity21%

Visibility—

Dew point43°

Tue, 1873° / 60°

73 °

Williston, Tuesday, 18 August

Overcast. High 73°, low 60°.

Pressure30.06 inHg

Wind12.9 mph NE

Humidity40%

Visibility—

Dew point45°

Wed, 1972° / 56°

72 °

Williston, Wednesday, 19 August

Overcast. High 72°, low 56°.

Pressure30.12 inHg

Wind12.2 mph SE

Humidity42%

Visibility—

Dew point45°

Thu, 2088° / 60°

0.03

88 °

Williston, Thursday, 20 August

Light rain. High 88°, low 60°.

Pressure29.85 inHg

Wind16.5 mph S

Humidity43%

Visibility—

Dew point53°

Fri, 2172° / 63°

0.45

72 °

Williston, Friday, 21 August

Rain. High 72°, low 63°.

Pressure29.77 inHg

Wind14.5 mph NW

Humidity89%

Visibility—

Dew point61°

Sat, 2276° / 60°

76 °

Williston, Saturday, 22 August

Partly cloudy. High 76°, low 60°.

Pressure29.85 inHg

Wind17.4 mph NW

Humidity34%

Visibility—

Dew point40°

Sun, 2387° / 59°

87 °

Williston, Sunday, 23 August

Overcast. High 87°, low 59°.

Pressure29.83 inHg

Wind13.7 mph S

Humidity25%

Visibility—

Dew point38°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2481° / 60°

0.07

81 °

Williston, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°

Average low60°

Average precipitation0.07 in

Chance of precipitation23%

Record high96° (1997)

Record low43° (2025)

Tue, 2579° / 58°

0.04

79 °

Williston, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high79°

Average low58°

Average precipitation0.04 in

Chance of precipitation18%

Record high97° (1969)

Record low42° (1992)

Wed, 2679° / 58°

0.04

79 °

Williston, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°

Average low58°

Average precipitation0.04 in

Chance of precipitation20%

Record high98° (2000)

Record low43° (2014)

Thu, 2780° / 58°

0.02

80 °

Williston, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°

Average low58°

Average precipitation0.02 in

Chance of precipitation18%

Record high96° (1991)

Record low46° (1982)

Fri, 2880° / 58°

0.06

80 °

Williston, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low58°

Average precipitation0.06 in

Chance of precipitation17%

Record high98° (1971)

Record low45° (1988)

Sat, 2979° / 57°

0.04

79 °

Williston, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high79°

Average low57°

Average precipitation0.04 in

Chance of precipitation18%

Record high98° (2012)

Record low43° (1974)

Sun, 3080° / 58°

0.04

80 °

Williston, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°

Average low58°

Average precipitation0.04 in

Chance of precipitation12%

Record high98° (2008)

Record low44° (1992)

Mon, 3177° / 57°

0.04

77 °

Williston, Monday, 31 August

Climate normal for this date — 60-year average.

Average high77°

Average low57°

Average precipitation0.04 in

Chance of precipitation23%

Record high95° (1991)

Record low42° (1992)

Tue, 0178° / 56°

0.04

78 °

Williston, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°

Average low56°

Average precipitation0.04 in

Chance of precipitation18%

Record high97° (1991)

Record low39° (1974)

Wed, 0277° / 57°

0.05

77 °

Williston, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high77°

Average low57°

Average precipitation0.05 in

Chance of precipitation17%

Record high94° (2015)

Record low38° (1974)

Thu, 0377° / 56°

0.06

77 °

Williston, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high77°

Average low56°

Average precipitation0.06 in

Chance of precipitation22%

Record high97° (1978)

Record low40° (1962)

Fri, 0476° / 56°

0.07

76 °

Williston, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°

Average low56°

Average precipitation0.07 in

Chance of precipitation15%

Record high97° (1978)

Record low40° (1965)

Sat, 0576° / 55°

0.07

76 °

Williston, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high76°

Average low55°

Average precipitation0.07 in

Chance of precipitation15%

Record high99° (1978)

Record low32° (1965)

Sun, 0676° / 54°

0.04

76 °

Williston, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°

Average low54°

Average precipitation0.04 in

Chance of precipitation18%

Record high100° (1976)

Record low37° (2025)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Williston, ND are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Williston, ND since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.