As of 03:21 CDT

Weather in Saint John, TN

72°

Saint John, Thursday, 15 October, 03:21

Clear. Feels like 73°. High 89°, low 68°.

Pressure30.09 inHg

Wind5.5 mph S

Humidity94%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

Fri, 1674° / 53°

0.03

74 °

Saint John, Friday, 16 October

Light rain. High 74°, low 53°.

Pressure30.03 inHg

Wind11.3 mph NW

Humidity70%

Visibility6.2 mi

Dew point55°

Sat, 1759° / 49°

59 °

Saint John, Saturday, 17 October

Mostly clear. High 59°, low 49°.

Pressure30.42 inHg

Wind10.7 mph N

Humidity45%

Visibility6.2 mi

Dew point35°

Sun, 1867° / 44°

67 °

Saint John, Sunday, 18 October

Clear. High 67°, low 44°.

Pressure30.50 inHg

Wind8.1 mph E

Humidity37%

Visibility6.2 mi

Dew point35°

Mon, 1969° / 46°

69 °

Saint John, Monday, 19 October

Overcast. High 69°, low 46°.

Pressure30.39 inHg

Wind4.6 mph N

Humidity40%

Visibility—

Dew point41°

Tue, 2072° / 49°

72 °

Saint John, Tuesday, 20 October

Partly cloudy. High 72°, low 49°.

Pressure30.30 inHg

Wind7.1 mph N

Humidity40%

Visibility—

Dew point42°

Wed, 2175° / 51°

75 °

Saint John, Wednesday, 21 October

Clear. High 75°, low 51°.

Pressure30.27 inHg

Wind4.5 mph N

Humidity36%

Visibility—

Dew point44°

Thu, 2279° / 54°

79 °

Saint John, Thursday, 22 October

Clear. High 79°, low 54°.

Pressure30.27 inHg

Wind3.3 mph SE

Humidity39%

Visibility—

Dew point49°

Fri, 2378° / 53°

78 °

Saint John, Friday, 23 October

Clear. High 78°, low 53°.

Pressure30.24 inHg

Wind6.3 mph S

Humidity31%

Visibility—

Dew point42°

Sat, 2480° / 55°

80 °

Saint John, Saturday, 24 October

Overcast. High 80°, low 55°.

Pressure30.27 inHg

Wind5.6 mph S

Humidity37%

Visibility—

Dew point48°

Sun, 2579° / 56°

79 °

Saint John, Sunday, 25 October

Partly cloudy. High 79°, low 56°.

Pressure30.18 inHg

Wind7.5 mph S

Humidity30%

Visibility—

Dew point42°

Mon, 2670° / 56°

70 °

Saint John, Monday, 26 October

Overcast. High 70°, low 56°.

Pressure30.06 inHg

Wind12.2 mph W

Humidity78%

Visibility—

Dew point55°

Tue, 2774° / 51°

74 °

Saint John, Tuesday, 27 October

Overcast. High 74°, low 51°.

Pressure29.97 inHg

Wind10.1 mph NE

Humidity51%

Visibility—

Dew point50°

Wed, 2860° / 52°

0.45

60 °

Saint John, Wednesday, 28 October

Rain. High 60°, low 52°.

Pressure29.74 inHg

Wind9.1 mph NW

Humidity97%

Visibility—

Dew point58°

Thu, 2966° / 43°

66 °

Saint John, Thursday, 29 October

Clear. High 66°, low 43°.

Pressure30.03 inHg

Wind6.8 mph NW

Humidity39%

Visibility—

Dew point37°

Fri, 3069° / 45°

69 °

Saint John, Friday, 30 October

Partly cloudy. High 69°, low 45°.

Pressure30.12 inHg

Wind6.2 mph NE

Humidity35%

Visibility—

Dew point37°

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 Saint John, TN 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 Saint John, TN 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.