As of 02:43 MDT

Weather in Jelm, WY

41°

Jelm, Sunday, 18 October, 02:43

Clear. Feels like 36°. High 62°, low 34°.

Pressure30.18 inHg

Wind9.4 mph W

Humidity61%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Mon, 1957° / 34°

57 °

Jelm, Monday, 19 October

Overcast. High 57°, low 34°.

Pressure30.09 inHg

Wind5.5 mph SW

Humidity40%

Visibility6.2 mi

Dew point27°

Tue, 2058° / 35°

58 °

Jelm, Tuesday, 20 October

Clear. High 58°, low 35°.

Pressure30.06 inHg

Wind8 mph SW

Humidity41%

Visibility6.2 mi

Dew point33°

Wed, 2159° / 35°

59 °

Jelm, Wednesday, 21 October

Partly cloudy. High 59°, low 35°.

Pressure30.15 inHg

Wind6.5 mph S

Humidity36%

Visibility6.2 mi

Dew point32°

Thu, 2259° / 38°

0.02

59 °

Jelm, Thursday, 22 October

Light rain. High 59°, low 38°.

Pressure30.00 inHg

Wind13.1 mph SW

Humidity42%

Visibility—

Dew point33°

Fri, 2355° / 40°

0.14

55 °

Jelm, Friday, 23 October

Light rain. High 55°, low 40°.

Pressure29.71 inHg

Wind15.8 mph SW

Humidity44%

Visibility—

Dew point30°

Sat, 2449° / 33°

0.01

49 °

Jelm, Saturday, 24 October

Light snow. High 49°, low 33°.

Pressure30.33 inHg

Wind20.8 mph SW

Humidity47%

Visibility—

Dew point24°

Sun, 2557° / 31°

57 °

Jelm, Sunday, 25 October

Clear. High 57°, low 31°.

Pressure30.21 inHg

Wind8.9 mph SW

Humidity22%

Visibility—

Dew point13°

Mon, 2656° / 34°

56 °

Jelm, Monday, 26 October

Overcast. High 56°, low 34°.

Pressure30.00 inHg

Wind8.6 mph SW

Humidity29%

Visibility—

Dew point19°

Tue, 2757° / 33°

57 °

Jelm, Tuesday, 27 October

Clear. High 57°, low 33°.

Pressure29.91 inHg

Wind15.7 mph W

Humidity29%

Visibility—

Dew point20°

Wed, 2854° / 36°

54 °

Jelm, Wednesday, 28 October

Clear. High 54°, low 36°.

Pressure29.88 inHg

Wind19.5 mph W

Humidity23%

Visibility—

Dew point14°

Thu, 2953° / 31°

53 °

Jelm, Thursday, 29 October

Clear. High 53°, low 31°.

Pressure29.85 inHg

Wind18.8 mph W

Humidity23%

Visibility—

Dew point11°

Fri, 3052° / 35°

52 °

Jelm, Friday, 30 October

Overcast. High 52°, low 35°.

Pressure29.77 inHg

Wind22.5 mph SW

Humidity21%

Visibility—

Dew point10°

Sat, 3156° / 39°

56 °

Jelm, Saturday, 31 October

Overcast. High 56°, low 39°.

Pressure29.80 inHg

Wind23.3 mph SW

Humidity22%

Visibility—

Dew point13°

Sun, 0160° / 39°

60 °

Jelm, Sunday, 1 November

Overcast. High 60°, low 39°.

Pressure30.03 inHg

Wind23 mph SW

Humidity13%

Visibility—

Dew point3°

Mon, 0262° / 38°

62 °

Jelm, Monday, 2 November

Overcast. High 62°, low 38°.

Pressure30.03 inHg

Wind10.4 mph SW

Humidity7%

Visibility—

Dew point-6°

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 Jelm, WY 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 Jelm, WY 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.