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As of 04:00 CST

Weather in Grantsburg, IL

50°Current weather

Grantsburg, Thursday, 5 November, 04:00

Clear. Feels like 49°. High 67°, low 49°.

Pressure29.88 inHg
Wind5.9 mph SW
Humidity96%
Visibility6.2 mi
Dew point49°
Fri, 0657° / 43°0Overcast
57 °Overcast

Grantsburg, Friday, 6 November

Overcast. High 57°, low 43°.

Pressure30.09 inHg
Wind10.4 mph N
Humidity70%
Visibility6.2 mi
Dew point47°
Sat, 0754° / 37°0Overcast
54 °Overcast

Grantsburg, Saturday, 7 November

Overcast. High 54°, low 37°.

Pressure30.24 inHg
Wind4.9 mph N
Humidity53%
Visibility6.2 mi
Dew point37°
Sun, 0859° / 36°0Clear
59 °Clear

Grantsburg, Sunday, 8 November

Clear. High 59°, low 36°.

Pressure30.24 inHg
Wind3.5 mph SW
Humidity50%
Visibility6.2 mi
Dew point38°
Mon, 0964° / 38°0Clear
64 °Clear

Grantsburg, Monday, 9 November

Clear. High 64°, low 38°.

Pressure30.21 inHg
Wind5.9 mph SW
Humidity49%
Visibility—
Dew point41°
Tue, 1066° / 41°0Clear
66 °Clear

Grantsburg, Tuesday, 10 November

Clear. High 66°, low 41°.

Pressure30.09 inHg
Wind6 mph SW
Humidity57%
Visibility—
Dew point46°
Wed, 1165° / 49°0Clear
65 °Clear

Grantsburg, Wednesday, 11 November

Clear. High 65°, low 49°.

Pressure30.00 inHg
Wind10.9 mph N
Humidity38%
Visibility—
Dew point37°
Thu, 1252° / 38°0Clear
52 °Clear

Grantsburg, Thursday, 12 November

Clear. High 52°, low 38°.

Pressure30.12 inHg
Wind11.4 mph N
Humidity38%
Visibility—
Dew point25°
Fri, 1358° / 35°0Clear
58 °Clear

Grantsburg, Friday, 13 November

Clear. High 58°, low 35°.

Pressure30.00 inHg
Wind6.8 mph SW
Humidity34%
Visibility—
Dew point25°
Sat, 1465° / 41°0Overcast
65 °Overcast

Grantsburg, Saturday, 14 November

Overcast. High 65°, low 41°.

Pressure30.00 inHg
Wind9.8 mph SW
Humidity36%
Visibility—
Dew point33°
Sun, 1572° / 48°0Clear
72 °Clear

Grantsburg, Sunday, 15 November

Clear. High 72°, low 48°.

Pressure30.06 inHg
Wind9.5 mph SW
Humidity49%
Visibility—
Dew point47°
Mon, 1675° / 58°0Mostly clear
75 °Mostly clear

Grantsburg, Monday, 16 November

Mostly clear. High 75°, low 58°.

Pressure30.03 inHg
Wind17 mph SW
Humidity46%
Visibility—
Dew point50°
Tue, 1773° / 61°0.08Light rain
73 °Light rain

Grantsburg, Tuesday, 17 November

Light rain. High 73°, low 61°.

Pressure30.03 inHg
Wind14.3 mph SW
Humidity58%
Visibility—
Dew point55°
Wed, 1867° / 59°0.02Light rain
67 °Light rain

Grantsburg, Wednesday, 18 November

Light rain. High 67°, low 59°.

Pressure30.03 inHg
Wind9.7 mph SW
Humidity67%
Visibility—
Dew point54°
Thu, 1962° / 49°0.78Heavy rain
62 °Heavy rain

Grantsburg, Thursday, 19 November

Heavy rain. High 62°, low 49°.

Pressure30.06 inHg
Wind11.8 mph N
Humidity75%
Visibility—
Dew point47°
Fri, 2053° / 44°0Overcast
53 °Overcast

Grantsburg, Friday, 20 November

Overcast. High 53°, low 44°.

Pressure30.12 inHg
Wind8.7 mph NW
Humidity41%
Visibility—
Dew point28°

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 Grantsburg, IL 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 Grantsburg, IL 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.