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Merna, NE Weather
Merna, Nebraska sits at 41.4852, -99.7611. Its warmest month is July, when the day usually reaches 85F, and its coldest is January, when the night usually falls to 12F. May is the wettest, with rain on about 11 days. The hottest day in the station record is 116F on July 11, 1954, and the coldest night -42F on January 23, 1915. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Merna weather
Merna sits at 41.4852, -99.7611 and covers about 0.536 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Merna
Merna is warmest in July, when the day usually reaches 85F, and coldest in January, when the night usually falls to 12F. May is the wettest month, with rain on about 11 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
Snow days
January
37F
12F
4
2
February
39F
14F
5
3
March
50F
23F
7
2
April
59F
32F
9
1
May
69F
44F
11
0
June
80F
55F
11
0
July
85F
60F
9
0
August
84F
58F
7
0
September
76F
48F
6
0
October
63F
34F
6
1
November
49F
22F
4
1
December
38F
13F
4
2
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Broken Bow 2 W station 6.9 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Merna weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Merna: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Merna weather records
In 186,521 days of observations Merna has been as hot as 116F and as cold as -42F. Not averages: the actual days.
Hottest day
116F
July 11, 1954
Coldest night
-42F
January 23, 1915
Wettest day
4.72 in
August 10, 1968
Biggest snow
19.0 in
January 19, 2023
NOAA GHCN daily station records, observed 1894 to 2026: temperature at the Broken Bow 2 W station, 6.9 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Merna weather
Common questions
What is the weather usually like in Merna, NE?
Merna is warmest in July, when the day usually reaches 85F, and coldest in January, when the night usually falls to 12F. Rain falls on roughly 83 days a year, most often in May. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Merna, NE?
About 83 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. May is the wettest month with rain on about 11 of its days, and January the driest with about 4.
Does it snow in Merna, NE?
Yes. Snow falls on about 12 days a year, most often in February, which averages about 3 snowy days. Those are days with measurable snowfall, not days with snow lying on the ground.
What is the hottest it has ever been in Merna, NE?
The hottest day measured for Merna reached 116F on July 11, 1954, and the coldest night -42F on January 23, 1915. Both are real NOAA station measurements from the GHCN daily archive, observed 1894 to 2026, at the Broken Bow 2 W station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Merna, NE?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Merna forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.